Cerebrospinal fever Health Dictionary

A serious viral haemorrhagic fever of humans harboured by small rodents such as the multimammate mouse of West and Central Africa.... lassa fever

Typhoid and Paratyphoid. Septicaemic diseases caused by Salmonella typhi and Salmonella paratyphi.... enteric fever

See MONONUCLEOSIS.... glandular fever

Also known as allergic rhinitis, this is caused by an ALLERGY to the pollen of grasses, trees and other plants. Contact with the particular pollen to which the sufferer is allergic causes HISTAMINE release, resulting in a blocked, runny nose and itchy, watering eyes. It affects approximately 3 million people each year in the UK.

The mainstays of treatment are ANTIHISTAMINE DRUGS, taken by mouth, and the use of steroid and cromoglycate nasal sprays and eye drops. Occasionally desensitisation by injection may work if the particular allergen is known.... hay fever

Fever, or PYREXIA, is the abnormal rise in body TEMPERATURE that frequently accompanies disease in general.

Causes The cause of fever is the release of fever-producing proteins (pyrogens) by phagocytic cells called monocytes and macrophages, in response to a variety of infectious, immunological and neoplastic stimuli. The lymphocytes (see LYMPHOCYTE) play a part in fever production because they recognise the antigen and release substances called lymphokines which promote the production of endogenous pyrogen. The pyrogen then acts on the thermoregulatory centre in the HYPOTHALAMUS and this results in an increase in heat generation and a reduction in heat loss, resulting in a rise in body temperature.

The average temperature of the body in health ranges from 36·9 to 37·5 °C (98·4 to 99·5 °F). It is liable to slight variations from such causes as the ingestion of food, the amount of exercise, the menstrual cycle, and the temperature of the surrounding atmosphere. There are, moreover, certain appreciable daily variations, the lowest temperature being between the hours of 01.00 and 07.00 hours, and the highest between 16.00 and 21.00 hours, with tri?ing ?uctuations during these periods.

The development and maintenance of heat within the body depends upon the metabolic oxidation consequent on the changes continually taking place in the processes of nutrition. In health, this constant tissue disintegration is exactly counterbalanced by the consumption of food, whilst the uniform normal temperature is maintained by the adjustment of the heat developed, and of the processes of exhalation and cooling which take place, especially from the lungs and skin. During a fever this balance breaks down, the tissue waste being greatly in excess of the food supply. The body wastes rapidly, the loss to the system being chie?y in the form of nitrogen compounds (e.g. urea). In the early stage of fever a patient excretes about three times the amount of urea that he or she would excrete on the same diet when in health.

Fever is measured by how high the temperature rises above normal. At 41.1 °C (106 °F) the patient is in a dangerous state of hyperpyrexia (abnormally high temperature). If this persists for very long, the patient usually dies.

The body’s temperature will also rise if exposed for too long to a high ambient temperature. (See HEAT STROKE.)

Symptoms The onset of a fever is usually marked by a RIGOR, or shivering. The skin feels hot and dry, and the raised temperature will often be found to show daily variations – namely, an evening rise and a morning fall.

There is a relative increase in the pulse and breathing rates. The tongue is dry and furred; the thirst is intense, while the appetite is gone; the urine is scanty, of high speci?c gravity and containing a large quantity of solid matter, particularly urea. The patient will have a headache and sometimes nausea, and children may develop convulsions (see FEBRILE CONVULSION).

The fever falls by the occurrence of a CRISIS – that is, a sudden termination of the symptoms – or by a more gradual subsidence of the temperature, technically termed a lysis. If death ensues, this is due to failure of the vital centres in the brain or of the heart, as a result of either the infection or hyperpyrexia.

Treatment Fever is a symptom, and the correct treatment is therefore that of the underlying condition. Occasionally, however, it is also necessary to reduce the temperature by more direct methods: physical cooling by, for example, tepid sponging, and the use of antipyretic drugs such as aspirin or paracetamol.... fever

Chrysanthemum parthenium. N.O. Compositae.

Synonym: Featherfew, Featherfoil, Pyrethrum parthenium.

Habitat: Waste places, hedges.

Features ? Stem one and a half feet high, erect, finely furrowed, hairy, branches towards top. Leaves alternate, bipinnatifid, serrate edges, very short hairs, about four and a half by two and a half inches; leaf stalk flat above, convex below. Numerous flowers (June and July), yellow disc, white petals, each on stalk. Taste, very unpleasant.

Part used ? Herb.

Action: Aperient, carminative.

Assists in promotion of the menses and in the expulsion of worms. Also given in hysterical conditions. Infusion of 1 ounce to 1 pint boiling water, wineglassful doses.... feverfew

Query Fever. A zoonotic febrile illness caused by the rickettsial organism, Coxiella burnettii. Is a particular hazard to abattoir workers but also causes problems to farmers, veterinarians and other farm workers. A vaccine (QVAX) is no available.... q fever

An arboviral (flavivirus) disease, also a zoonosis, being essentially a disease of forest monkeys, which under certain conditions can be transmitted to humans. A vaccine is available.... yellow fever

This is caused by rapid breakdown of red blood cells (acute intravascular haemolysis), with resulting kidney failure as the breakdown products block the vessels serving the kidney ?ltration units (see KIDNEYS). It is associated with severe Plasmodium falciparum infection.

The complication is frequently fatal, being associated with HAEMOGLOBINURIA, JAUNDICE, fever, vomiting and severe ANAEMIA. In an extreme case the patient’s urine appears black. Tender enlarged liver and spleen are usually present. The disease is triggered by quinine usage at subtherapeutic dosage in the presence of P. falciparum infection, especially in the non-immune individual. Now that quinine is rarely used for prevention of this infection (it is reserved for treatment), blackwater fever has become very unusual. Treatment is as for severe complicated P. falciparum infection with renal impairment; dialysis and blood transfusion are usually indicated. When inadequately treated, the mortality rate may be over 40 per cent but, with satisfactory intensive therapy, this should be reduced substantially.... blackwater fever

An infection in humans caused by a small gram-negative BACILLUS (Bartonella henselae). The domestic cat is a reservoir for the bacteria, and up to 50 per cent of the cat population may be affected. The disorder manifests itself as a skin lesion 3–10 days after a minor scratch; within two weeks the victim’s lymph glands enlarge and may produce pus. Fever, headache and malaise occur in some patients. Antibiotics do not seem to be e?ective. The skin lesion and lymph-gland enlargement subside spontaneously within 2–5 months.... cat-scratch fever

The ?uid within the ventricles of the brain and bathing its surface and that of the spinal cord. Normally a clear, colourless ?uid, its pressure when an individual is lying on one side is 50 to 150 mm water. A LUMBAR PUNCTURE should not be done if the intracranial pressure is raised (see HYDROCEPHALUS).

The cerebrospinal ?uid (CSF) provides useful information in various conditions and is invaluable in the diagnosis of acute and chronic in?ammatory diseases of the nervous system. Bacterial MENINGITIS results in a large increase in the number of polymorphonuclear LEUCOCYTES, while a marked lymphocytosis is seen in viral meningitis and ENCEPHALITIS, tuberculous meningitis and neurosyphilis. The total protein content is raised in many neurological diseases, being particularly high with neuro?bromatosis (see VON RECKLINGHAUSEN’S DISEASE) and Guillan-Barré syndrome, while the immunoglobulin G fraction is raised in MULTIPLE SCLEROSIS (MS), neurosyphilis, and connective-tissue disorders. The glucose content is raised in diabetes (see DIABETES MELLITUS), but may be very low in bacterial meningitis, when appropriately stained smears or cultures often de?ne the infecting organism. The CSF can also be used to measure immune proteins produced in response to infection, helping diagnosis in cases where the organism is not grown in the laboratory culture.... cerebrospinal fluid

See BRUCELLOSIS.... malta fever

So-called because of the characteristic temperature chart showing recurring bouts of fever, this is an infectious disease caused by SPIROCHAETE. There are two main forms of the disease.

Louse-borne relapsing fever is an EPIDEMIC disease, usually associated with wars and famines, which has occurred in practically every country in the world. For long confused with TYPHUS FEVER and typhoid fever (see ENTERIC FEVER), it was not until the 1870s that the causal organism was described by Obermeier. It is now known as the Borrelia recurrentis, a motile spiral organism 10–20 micrometres in length. The organism is transmitted from person to person by the louse, Pediculus humanus.

Symptoms The incubation period is up to 12 days (but usually seven). The onset is sudden, with high temperature, generalised aches and pains, and nose-bleeding. In about half of cases, a rash appears at an early stage, beginning in the neck and spreading down over the trunk and arms. JAUNDICE may occur; and both the LIVER and the SPLEEN are enlarged. The temperature subsides after ?ve or six days, to rise again in about a week. There may be up to four such relapses (see the introductory paragraph above).

Treatment Preventive measures are the same as those for typhus. Rest in bed is essential, as are good nursing and a light, nourishing diet. There is usually a quick response to PENICILLIN; the TETRACYCLINES and CHLORAMPHENICOL are also e?ective. Following such treatment the incidence of relapse is about 15 per cent. The mortality rate is low, except in a starved population.

Tick-borne relapsing fever is an ENDEMIC disease which occurs in most tropical and sub-tropical countries. The causative organism is Borrelia duttoni, which is transmitted by a tick, Ornithodorus moubata. David Livingstone suggested that it was a tick-borne disease, but it was not until 1905 that Dutton and Todd produced the de?nitive evidence.

Symptoms The main di?erences from the louse-borne disease are: (a) the incubation period is usually shorter, 3–6 days (but may be as short as two days or as long as 12); (b) the febrile period is usually shorter, and the afebrile periods are more variable in duration, sometimes only lasting for a day or two; (c) relapses are much more numerous.

Treatment Preventive measures are more di?cult to carry out than in the case of the louse-borne infection. Protective clothing should always be worn in ‘tick country’, and old, heavily infected houses should be destroyed. Curative treatment is the same as for the louse-borne infection.... relapsing fever

An acute febrile illness, usually seen in children, which may include ARTHRALGIA, ARTHRITIS, CHOREA, carditis (see below) and rash (see ERUPTION). The illness has been shown to follow a beta-haemolytic streptococcal infection (see STREPTOCOCCUS).

Rheumatic fever is now extremely uncommon in developed countries, but remains common in developing areas. Diagnosis is based on the presence of two or more major manifestations – endocarditis (see under HEART, DISEASES OF), POLYARTHRITIS, chorea, ERYTHEMA marginatum, subcutaneous nodules – or one major and two or more minor ones – fever, arthralgia, previous attacks, raised ESR, raised white blood cell count, and ELECTROCARDIOGRAM (ECG) changes. Evidence of previous infection with streptococcus is also a criterion.

Clinical features Fever is high, with attacks of shivering or rigor. Joint pain and swelling (arthralgia) may affect the knee, ankle, wrist or shoulder and may migrate from one joint to another. TACHYCARDIA may indicate cardiac involvement. Subcutaneous nodules may occur, particularly over the back of the wrist or over the elbow or knee. Erythema marginatum is a red rash, looking like the outline of a map, characteristic of the condition.

Cardiac involvement includes PERICARDITIS, ENDOCARDITIS, and MYOCARDITIS. The main long-term complication is damage to the mitral and aortic valves (see HEART).

The chief neurological problem is chorea (St Vitus’s dance) which may develop after the acute symptoms have subsided.

Chronic rheumatic heart disease occurs subsequently in at least half of those who have had rheumatic fever with carditis. The heart valve usually involved is the mitral; less commonly the aortic, tricuspid and pulmonary. The lesions may take 10–20 years to develop in developed countries but sooner elsewhere. The heart valves progressively ?brose and ?brosis may also develop in the myocardium and pericardium. The outcome is either mitral stenosis or mitral regurgitation and the subsequent malfunction of this or other heart valves affected is chronic failure in the functioning of the heart. (see HEART, DISEASES OF).

Treatment Eradication of streptococcal infection is essential. Other features are treated symptomatically. PARACETAMOL may be preferred to ASPIRIN as an antipyretic in young children. One of the NON-STEROIDAL ANTIINFLAMMATORY DRUGS (NSAIDS) may bene?t the joint symptoms. CORTICOSTEROIDS may be indicated for more serious complications.

Patients who have developed cardiac-valve abnormalities require antibiotic prophylaxis during dental treatment and other procedures where bacteria may enter the bloodstream. Secondary cardiac problems may occur several decades later and require replacement of affected heart valves.... rheumatic fever

A fever of the typhus group (see TYPHUS FEVER). It received its name from the fact that it was ?rst reported in the Rocky Mountain States of the United States; these are still the most heavily infected areas, but the fever is now found in all parts of the US. The causative organism is Rickettsia rickettsi, which is transmitted to humans by tics.... rocky mountain spotted fever

An infectious disease caused by Rickettsia quintana which is transmitted by the body louse. Large epidemics occurred among troops on active service during World War I. It recurred on a smaller scale in World War II, but is now rare.... trench fever

This disorder is caused by the erythrogenic toxin of the STREPTOCOCCUS. The symptoms of PYREXIA, headache, vomiting and a punctate erythematous rash (see ERYTHEMA) follow a streptococcal infection of the throat or even a wound. The rash is symmetrical and does not itch. The skin subsequently peels.

Symptoms The period of incubation (i.e. the time elapsing between the reception of infection and the development of symptoms) varies somewhat. In most cases it lasts only two to three days, but in occasional cases the patient may take a week to develop his or her ?rst symptoms. The occurrence of fever is usually short and sharp, with rapid rise of temperature to 40 °C (104 °F), shivering, vomiting, headache, sore throat and marked increase in the rate of the pulse. In young children, CONVULSIONS or DELIRIUM may precede the fever. The rash usually appears within 24 hours of the onset of fever and lasts about a week.

Complications The most common and serious of these is glomerulonephritis (see under KIDNEYS, DISEASES OF), which may arise during any period in the course of the fever, but particularly when DESQUAMATION occurs. Occasionally the patient develops chronic glomerulonephritis. Another complication is infection of the middle ear (otitis media – see under EAR, DISEASES OF). Other disorders affecting the heart and lungs occasionally arise in connection with scarlet fever, the chief of these being ENDOCARDITIS, which may lay the foundation of valvular disease of the heart later in life. ARTHRITIS may produce swelling and pain in the smaller rather than in the larger joints; this complication usually occurs in the second week of illness. Scarlet fever, which is now a mild disease in most patients, should be treated with PENICILLIN.... scarlet fever

See ENTERIC FEVER.... typhoid fever

A regularly recurring fever... intermittent fever

See ENTERIC FEVER.... paratyphoid fever

Description of intermittent fever with paroxysms developing every fourth day. Usually applied to MALARIA.... quartan fever

An infectious disease following the bite of a rat. There are two causative organisms – Spirillum minus and Actinobacillus muris – and the incubation period depends upon which is involved. In the case of the former it is 5–30 days; in the case of the latter it is 2–10 days. The disease is characterised by fever, a characteristic skin rash and often muscular or joint pains. It responds well to PENICILLIN.... rat-bite fever

The term applied to the form of fever in which, during remissions (see REMISSION), the temperature falls, but not to normal.... remittent fever

A virus disease, caused by a phlebovirus and transmitted by mosquitoes, at one time con?ned to sub-Saharan Africa and predominantly found in domestic animals such as cattle, sheep and goats. The only humans affected were veterinary surgeons, butchers and others exposed to heavy infection by direct contact with infected animals; these usually recovered. In the 1970s the disease ?ared up in Egypt, probably owing to a more virulent virus. The illness in humans is characterised by fever, haemorrhages, ENCEPHALITIS and involvement of the EYE. An e?ective vaccine protects both animals and human beings against the disease (see IMMUNISATION).... rift valley fever

See MENINGITIS; EPIDEMIC; TYPHUS FEVER.... spotted fever

The name applied to that type of MALARIA in which the fever reappears every other day.... tertian fever

This is a short, sharp fever occurring in many parts of the tropics and subtropics, including most of the Mediterranean littoral. It is due to a virus, called phlebovirus, conveyed by the bite of a small hairy midge or sandfly (Phlebotomus papatasi). The incubation period is 3–7 days.

Symptoms There are headache, feverishness, general sensations like those of INFLUENZA, flushed face and bloodshot eyes, but no signs of CATARRH. The fever passes off in three days, but the patient may take some time to convalesce.

Treatment As there is no specific remedy, PROPHYLAXIS is important. This consists of the spraying of rooms with an insecticide such as GAMMEXANE; the application of insect repellents such as dimethyl phthalate to the exposed parts of the body (e.g. ankles, wrists and face), particularly at sunset; and the use of sandfly nets at night. Once the infection is acquired, treatment consists of rest in bed, light diet and aspirin and codeine.... sandfly fever

Another name for BRUCELLOSIS.... undulant fever

Also called EBOLA VIRUS DISEASE. A usually fatal infection caused by a virus related to that of MARBURG DISEASE. Two large outbreaks of it were recorded in 1976 (one in the Sudan and one in Zaïre), with a mortality, respectively, of 50 and 80 per cent, and the disease reappeared in the Sudan in 1979. After an incubation period of 7–14 days, the onset is with headache of increasing severity, and fever. This is followed by diarrhoea, extensive internal bleeding and vomiting. Death usually occurs on the eighth to ninth day. Infection is by person-to-person contact. Serum from patients convalescent from the disease is a useful source of ANTIBODIES to the virus.... viral haemorrhagic fever

An intermittent fever related to brucellosis. Colchicum. (Martindale 27th Ed. p.370)

See: BRUCELLOSIS. ... mediterranean fever

A tropical viral illness, also called dengue, that is spread by mosquitoes.... breakbone fever

An inherited condition causing recurrent bouts of fever. (See familial Mediterranean fever.)... periodic fever

Cerebral hyperemia. See Poe, Edgar Allen... brain fever

A tick-borne arboviral infection extending in distribution from Eastern Europe and Asia through to Southern Africa.... congo-crimean haemorrhagic fever

Continued fevers-are typhus, typhoid and relapsing fevers, so-called because of their continuing over a more or less de?nite space of time.... continued fevers

(Syn. “Breakbone fever”) A flavivirus, dengue virus types 1-4, transmitted by infected specific Aedes spp mosquitoes. Sudden abrupt onset of high fever, headache, retrobulbar pain and lumbosacral pain. Fever lasts 6-7 days and may be ‘saddleback’. Initial symptoms followed by generalised myalgia, bone pain, anorexia, nausea, vomiting and weakness. A transient mottled rash may appear on 1st/2nd day and a second rash appears with resolution of fever - at first on trunk, spreading outward. WCC and platelet count depressed. Mild haemorrhagic phenomena in a few.... dengue fever

Usually a second infection with a different serotype of the dengue virus (see dengue fever). A primary infection at a young age is common finding. Age of patient with DHF is often less than 5 years, but young adults may be affected. Severe illness with abnormal vascular permeability, hypovolaemia and abnormal clotting mechanisms. Bleeding into skin or internally. Dengue shock syndrome may also be a complication.... dengue haemorrhagic fever

A tick-borne disease found on Flinder’s Island, north of Tasmania. Zoonotic and caused by Rickettsia honei.... flinder’s island spotted fever

A form of ALVEOLITIS caused by contamination of the water used to humidify, or moisten, the air in air-conditioning plants. The breathing of the contaminated air results in infection of the lung, which is characterised by fever, cough, shortness of breath and malaise – worse on Monday and tending to improve during the

course of the week. (See also LEGIONNAIRE’S DISEASE.)... humidifier fever

See MALARIA.... marsh fever

An old name for typhus fever (see ENTERIC FEVER).... putrid fever

A tick-borne spotted fever endemic to mainland Australia. Caused by Rickettsia australis.... queensland spotted fever

ee Epidemic Polyarthritis, Ross River Virus.... ross river fever s

Tick-borne spotted fever.... tick bite fever

A septicaemic infection of humans caused by Salmonella typhi. A similar but generallymilder enteric fever, paratyphoid, is caused by Salmonella paratyphi A,B,C.... typhoid (enteric) fever

Fever is a medical condition characterized by the elevation of body temperature above the normal range of 36.5-37.5 °C (98-100 °F). It is normally caused by an increase in the temperature regulatory set-point, which leads to increased muscle tone and shivering. Fever can be caused by several conditions: from benign to potentially serious issues. Treatment to reduce fever is not necessary, unless the temperature is very high. Antipyretic medications can lower the temperature. Hydration is vital in dealing with fever. How tea for fever works Tea for fever  is usually successful in lowering the body›s temperature. Efficient teas for fever Studies revealed that Echinacea tea and Anamu tea  are both efficient teas for fever. Echinacea is a herb found in the Unites States: from Texas to Alabama, and from Kansas to Nebraska. The flowers of the Echinacea plant are whitish rose to pale purple. It has brown fruiting heads and a thick, blackish root. Generally, it is known as an immunity enhancer. Echinacea tea is used to treat the common cold, influenza outbreaks and mild to moderate infections of all kinds. Echinacea beverage as a tea for fever contributes to lowering the fever, due to its anti-inflammatory action. To prepare Echinacea tea, infuse the leaves, stems, flowers and roots of the Echinacea plant in hot water. Steep them for 15 minutes. Strain it and drink it warm. Anamu tea is often chosen by consumers due to its anti-tumors and anti-cancer properties. As a tea for fever, Anamu beverage helps the body to fight against infections, boosting its immune system. It enables it to reduce the high temperature. To prepare Anamu tea, place 30 grams of the dried anamu plant in one liter of boiling water. Let it boil for 15 minutes. Take it out of the heat. Let the mix steep for a further 7 minutes. It can be taken three times a day. Anamu can also be found in powder tablet and capsules. Tea for fever: Side effects In large doses, teas for fever may cause side effects: vomiting, nausea, dizziness, heartburn. Teas for fever are good to be purchased instead of traditional drugs. They act as an immunity enhancer and may lower the fever, thus improving the general state of the patients.  ... tea for fever

No. 10. Equal parts: Lobelia herb, Pleurisy root, Crawley root, Catmint (Catnip), Sage. In powder form. Dose: One heaped teaspoon in cup; fill with boiling water; steep half an hour. 3-5 tablespoons every half hour while fever is on. Dose: small child, quarter of a teaspoon; child, half a teaspoon. For most kinds of fever it is a safe and efficient febrifuge. Never allow fever powder to be boiled. (Dr Melville Keith)

Widely used by the Eclectic School during second half of the 19th century. ... fever powder

An infective disease of worldwide distribution, the manifestations of which vary in di?erent localities. The causative organisms of all forms of typhus fever belong to the genus RICKETTSIA. These are organisms which are intermediate between bacteria and viruses in their properties, and measure 0·5 micrometre or less in diameter.

Louse typhus, in which the infecting rickettsia is transmitted by the louse, is of worldwide distribution. More human deaths have been attributed to the louse via typhus, louse-borne RELAPSING FEVER and trench fever, than to any other insect with the exception of the MALARIA mosquito. Louse typhus includes epidemic typhus, Brill’s disease – which is a recrudescent form of epidemic typhus – and TRENCH FEVER.

Epidemic typhus fever, also known as exanthematic typhus, classical typhus, and louse-borne typhus, is an acute infection of abrupt onset which, in the absence of treatment, persists for 14 days. It is of worldwide distribution, but is largely con?ned today to parts of Africa. The causative organism is the Rickettsia prowazeki, so-called after Ricketts and Prowazek, two brilliant investigators of typhus, both of whom died of the disease. It is transmitted by the human louse, Pediculus humanus. The rickettsiae can survive in the dried faeces of lice for 60 days, and these infected faeces are probably the main source of human infection.

Symptoms The incubation period is usually 10–14 days. The onset is preceded by headache, pain in the back and limbs and rigors. On the third day the temperature rises, the headache worsens, and the patient is drowsy or delirious. Subsequently a characteristic rash appears on the abdomen and inner aspect of the arms, to spread over the chest, back and trunk. Death may occur from SEPTICAEMIA, heart or kidney failure, or PNEUMONIA about the 14th day. In those who recover, the temperature falls by CRISIS at about this time. The death rate is variable, ranging from nearly 100 per cent in epidemics among debilitated refugees to about 10 per cent.

Murine typhus fever, also known as ?ea typhus, is worldwide in its distribution and is found wherever individuals are crowded together in insanitary, rat-infested areas (hence the old names of jail-fever and ship typhus). The causative organism, Rickettsia mooseri, which is closely related to R. prowazeki, is transmitted to humans by the rat-?ea, Xenopsyalla cheopis. The rat is the main reservoir of infection; once humans are infected, the human louse may act as a transmitter of the rickettsia from person to person. This explains how the disease may become epidemic under insanitary, crowded conditions. As a rule, however, the disease is only acquired when humans come into close contact with infected rats.

Symptoms These are similar to those of louse-borne typhus, but the disease is usually milder, and the mortality rate is very low (about 1·5 per cent).

Tick typhus, in which the infecting rickettsia is transmitted by ticks, occurs in various parts of the world. The three best-known conditions in this group are ROCKY MOUNTAIN SPOTTED FEVER, ?èvre boutonneuse and tick-bite fever.

Mite typhus, in which the infecting rickettsia is transmitted by mites, includes scrub typhus, or tsutsugamushi disease, and rickettsialpox.

Rickettsialpox is a mild disease caused by Rickettsia akari, which is transmitted to humans from infected mice by the common mouse mite, Allodermanyssus sanguineus. It occurs in the United States, West and South Africa and the former Soviet Union.

Treatment The general principles of treatment are the same in all forms of typhus. PROPHYLAXIS consists of either avoidance or destruction of the vector. In the case of louse typhus and ?ea typhus, the outlook has been revolutionised by the introduction of e?cient insecticides such as DICHLORODIPHENYL TRICHLOROETHANE (DDT) and GAMMEXANE.

The value of the former was well shown by its use after World War II: this resulted in almost complete freedom from the epidemics of typhus which ravaged Eastern Europe after World War I, being responsible for 30 million cases with a mortality of 10 per cent. Now only 10,000–20,000 cases occur a year, with around a few hundred deaths. E?cient rat control is another measure which reduces the risk of typhus very considerably. In areas such as Malaysia, where the mites are infected from a wide variety of rodents scattered over large areas, the wearing of protective clothing is the most practical method of prophylaxis. CURATIVE TREATMENT was revolutionised by the introduction of CHLORAMPHENICOL and the TETRACYCLINES. These antibiotics altered the prognosis in typhus fever very considerably.... typhus fever

chick embryos injected with the living, attenuated strain (17D) of pantropic virus. Only one injection is required, and immunity persists for many years. Re-inoculation, however, is desirable every ten years. (See YELLOW FEVER.)

Haemophilus vaccine (HiB) This vaccine was introduced in the UK in 1994 to deal with the annual incidence of about 1,500 cases and 100 deaths from haemophilus MENINGITIS, SEPTICAEMIA and EPIGLOTTITIS, mostly in pre-school children. It has been remarkably successful when given as part of the primary vaccination programme at two, three and four months of age – reducing the incidence by over 95 per cent. A few cases still occur, either due to other subgroups of the organism for which the vaccine is not designed, or because of inadequate response by the child, possibly related to interference from the newer forms of pertussis vaccine (see above) given at the same time.

Meningococcal C vaccine Used in the UK from 1998, this has dramatically reduced the incidence of meningitis and septicaemia due to this organism. Used as part of the primary programme in early infancy, it does not protect against other types of meningococci.

Varicella vaccine This vaccine, used to protect against varicella (CHICKENPOX) is used in a number of countries including the United States and Japan. It has not been introduced into the UK, largely because of concerns that use in infancy would result in an upsurge in cases in adult life, when the disease may be more severe.

Pneumococcal vaccine The pneumococcus is responsible for severe and sometimes fatal childhood diseases including meningitis and septicaemia, as well as PNEUMONIA and other respiratory infections. Vaccines are available but do not protect against all strains and are reserved for special situations – such as for patients without a SPLEEN or those who are immunode?cient.... yellow fever vaccine is prepared from

The flow of milk does not naturally commence until the third day after delivery when a slight feverishness with chill may be experienced. With filling of the breast and suckling by the child relief is felt. The condition is not usually in need of medication but where difficult, as it can be to anorexics and those in feeble health, a cup of Chamomile tea suffices. Combine with Skullcap for those of nervous disposition. ... milk fever

See puerperal fever.... childbed fever

A dangerous and highly contagious viral infection that causes severe haemorrhaging from the skin and mucous membranes. Ebola fever occurs predominantly in Africa. There is no specific treatment for the disease, which is fatal in many cases.... ebola fever

An inherited condition that affects certain Sephardic Jewish, Armenian, and Arab families. Its cause is unknown. Symptoms usually begin between the ages of 5 and 15 years, and include recurrent episodes of fever, abdominal and chestpain, and arthritis. Red skin swellings sometimes occur, and affected people may also suffer psychiatric problems. Attacks usually last from 24–48 hours but may be longer. Between attacks there are usually no symptoms. Although there is no specific treatment for familial Mediterranean fever, known sufferers can reduce the incidence of attacks by taking colchicine. Death may eventually occur from amyloidosis, which is a complication of the condition.... familial mediterranean fever

The common name for psittacosis.... parrot fever

Another name for leptospirosis. The term is also sometimes applied to malaria.... swamp fever

a disease caused by an *arbovirus and transmitted to humans by mosquitoes of the genus Aëdes. The disease is similar to *dengue and symptoms include fever, headache, joint and muscle pain, and an irritating rash. The patient is given drugs to relieve the pain and reduce the fever; the joint pain, which may progress to arthritis, can persist for up to three years after the infection. Chikungunya was first reported in Tanzania in 1952 and has since occurred in over sixty countries worldwide.... chikungunya fever

a disease caused by bunyaviruses that has occurred in the former USSR, the Middle East, and Africa. It causes bleeding into the intestines, kidneys, genitals, and mouth with up to 50% mortality. The virus is spread by various types of tick from wild animals and birds to domestic animals (especially goats and cattle) and thus to humans.... crimean congo haemorrhagic fever

see kala-azar.... dumdum fever

a group of rare inherited disorders characterized by recurrent attacks of fever and inflammation in the absence of infection. They include familial Mediterranean fever (see polyserositis), tumour necrosis factor receptor-associated periodic syndrome (TRAPS), and the cryopyrin-associated periodic syndrome (CAPS). Causative gene mutations have been identified.... hereditary periodic fever syndromes

(joint-breaker fever) a disease of Africa and Malaysia, caused by an *arbovirus and transmitted by mosquitoes of the genus *Anopheles. It is similar to *dengue and symptoms include rigor, severe headache, an irritating rash, fever, and pains in the joints. The patient is given drugs to relieve the pain and fever.... o’nyong nyong fever

see bartonellosis.... oroya fever

see sandfly fever.... pappataci fever

see malaria.... quotidian fever

see tularaemia.... rabbit fever

a viral disease caused by an *alphavirus transmitted by mosquitoes. Various vertebrates can be infected, and wild rodents may be reservoirs of the infection. The virus can cause epidemics of *polyarthritis and skin rashes (macules and papules). It occurs in Australia and the western Pacific region.... ross river fever

a form of *malaria resulting from repeated infection by Plasmodium falciparum and characterized by continuous fever.... subtertian fever

any infectious disease transmitted by ticks, especially *Rocky Mountain spotted fever.... tick fever

a fever resulting from a serious injury.... traumatic fever

a viral disease caused by the West Nile virus (a *flavivirus), which is spread by the Culex pipiens mosquito. It causes encephalitis, with influenza-like symptoms, enlarged lymph nodes, and a bright red rash on the chest and abdomen. In patients with a weakened immune system (such as the elderly) it can progress to convulsions, coma, and paralysis.... west nile fever