West nile virus Health Dictionary

West Nile Virus: From 2 Different Sources


A virus transmitted from infected animals or birds to humnans by a mosquito bite. In most cases, there are either no symptoms or a flu-like illness. Rarely, a serious and potentially fatal illness, in which the virus infects the brain, can develop. The virus is found in Africa, Eastern Europe, West Asia, the Middle East, and, since 1999, the East coast of the.
Health Source: BMA Medical Dictionary
Author: The British Medical Association
A mosquito-borne viral infection that is normally harmless to healthy people who, if infected, develop a mild ?u-like illness. However, if the elderly and those in poor health, particularly immunocompromised patients, are infected, they may develop fatal in?ammation of the brain and spinal cord. In Israel in 2000, 12 people died and more than 155 survived an outbreak; and in New York in 1999, more than 60 people were infected, of whom six died. The disease was ?rst reported in Uganda in 1937 and became ENDEMIC in the Middle East and Africa, recently spreading to Europe, central Asia, Oceania and America. Mosquitoes bearing the ?aviviridae-family virus usually contract it by biting infected poultry, but the infection has been found in mammals, such as cats, dogs and horses.
Health Source: Medical Dictionary
Author: Health Dictionary

Epstein Barr Virus

The virus that causes glandular fever or infectious MONONUCLEOSIS. It is similar to the viruses that cause herpes and is associated with BURKITT’S LYMPHOMA. It has been suggested as precipitating some attacks of MYALGIC ENCEPHALOMYELITIS (ME), also known as CHRONIC FATIGUE SYNDROME (CFS).... epstein barr virus

Virus

An extremely small infective agent requiring living cells for replication. Are either RNA or DNA, never both.... virus

Slow Virus

See prion.... slow virus

Barmah Forest Virus

A mosquito-borne arbovirus causing symptoms similar to Ross River virus infection in Australia. (See also Ross River virus).... barmah forest virus

Coxsackie Viruses

A group of viruses so-called because they were ?rst isolated from two patients with a disease resembling paralytic POLIOMYELITIS, in the village of Coxsackie in New York State. Thirty distinct types have now been identi?ed. They constitute one of the three groups of viruses included in the family of ENTEROVIRUSES, and are divided into two groups: A and B. Despite the large number of types of group A virus (24) in existence, evidence of their role in causing human disease is limited. Some, however, cause aseptic MENINGITIS, non-specicifc upper respiratory infection and MYOCARDITIS, and others cause a condition known as HERPANGINA. HAND, FOOT AND MOUTH DISEASE is another disease caused by the A group. All six types of group B virus have been associated with outbreaks of aseptic meningitis, and they are also the cause of BORNHOLM DISEASE. Epidemics of type B2 infections tend to occur in alternate years. (See VIRUS.)... coxsackie viruses

Ebola Virus Disease

Ebola virus disease is another name for VIRAL HAEMORRHAGIC FEVER. The ebola virus is one of the most virulent micro-organisms known. Like the marburg virus (see MARBURG DISEASE), it belongs to the ?lovirus group which originates in Africa. Increased population mobility and wars have meant that the infection occasionally occurs elsewhere, with air travellers developing symptoms on returning home.

Treatment As the disease can be neither prevented nor cured, treatment is supportive, with strict anti-infection procedures essential as human-to-human transmission can occur via skin and mucous-membrane contacts. Incubation period is 5–10 days. Fever with MYALGIA and headache occur initially, often accompanied by abdominal and chest symptoms. Haemorrhagic symptoms soon develop and the victim either starts to improve in the second week or develops multi-organ failure and lapses into a coma. Mortality ranges from 25 to 90 per cent.... ebola virus disease

Hendra Virus

Virus of Flying Foxes (Fruit Bats) in Australia. Can infect horses and humans. Also known as the Equine morbillivirus.... hendra virus

Hepatitis Viruses

The most common causes of viral hepatitis are those caused by the Hepatitis A, B, C, D, E and G viruses. Hepatitis F virus has been described but is a doubtful entity. Other viruses which can cause hepatitis include the Epstein-Barr Virus, cytomegalovirus, and the Yellow Fever virus.... hepatitis viruses

Herpes Simplex Virus

Causative virus of genital herpes and herpes labalis or cold sores.... herpes simplex virus

Herpes Viruses

One member of a group of viruses containing DNA which cause latent infections in animals and humans. Viruses from this group cause HERPES SIMPLEX, HERPES ZOSTER (shingles) and CHICKENPOX, and include CYTOMEGALOVIRUS (CCMV) and EPSTEIN-BARR VIRUS.... herpes viruses

Herpes Zoster Virus

Causative virus of chicken pox and shingles.... herpes zoster virus

Hiv (human Immunodeficiency Virus)

The name of the causative agent of AIDS.... hiv (human immunodeficiency virus)

Human Immunodeficiency Virus

See AIDS/HIV.... human immunodeficiency virus

Lyssa Virus

A group of rhabdoviruses closely related to the rabies virus. The Australian Bat Lyssa virus is found in flying foxes (fruit bats) and can cause a rabies-like disease in humans. The disease should be handled as for rabies and can be prevented by using rabies vaccine.... lyssa virus

Monkey B Virus

A herpes virus of monkeys that can infect humans, usually through handling monkey tissues at autopsy or in the laboratory.... monkey b virus

Nile

(Egyptian) From the Nile river Nilea, Nilia, Nila, Nyla, Naila... nile

Nipah Virus

Virus first identified from the village of Nipah in Malaysia. Carried by flying foxes (fruit bats). Can infect pigs and humans.... nipah virus

Papova Viruses

These include the human papilloma viruses (HPV), of which nearly a hundred strains have been identi?ed. HPV cause verrucae (see WARTS) on skin and, less often, on the mucous membranes of mouth, larynx, genitalia and the cervix. Some strains may predispose to eventual cancer.... papova viruses

Parainfluenza Viruses

These are included in the paramyxoviruses (see MYXOVIRUSES) and divided into four types, all of which cause infection of the respiratory system (see RESPIRATION). Infection with type 3 begins in May, reaches a maximum in July or August and returns to base-line level in October. Types 1 and 2 are predominantly winter viruses. Children are commonly affected and the manifestations include CROUP, fever, and a rash.... parainfluenza viruses

Picorna Viruses

These infectious agents derive their name from pico (small) and from RNA (because they contain ribonuleic acid). They are a group of viruses which includes the ENTEROVIRUSES and the RHINOVIRUSES.... picorna viruses

Respiratory Syncytial Virus (rsv)

Usually known as RSV, this is one of the MYXOVIRUSES. It is among the major causes of BRONCHIOLITIS and PNEUMONIA among infants aged under 6 months; its incidence has been increasing, possibly due to atmospheric pollution.... respiratory syncytial virus (rsv)

Ross River Virus

A mosquito-borne arbovirus causing epidemic polyarthritis in Australia and certain islands of the Western Pacific to which it has spread.... ross river virus

West Indian

MEDLAR

Mimusops elengi

Sapotaceae

San: Bakulah

Hin: Bakul, Maulsiri

Ben: Bakul

Mal: Ilanji, Elanji

Tam: Magilam, Ilanci

Tel: Pogada

Kan: Pagademara Guj:

Barsoli, Bolsari

Importance: Spanish cherry, West Indian Medlar or Bullet wood tree is an evergreen tree with sweet- scented flowers having ancient glamour. Garlands made of its flowers are ever in good demand due to its long lasting scent. Its bark is used as a gargle for odontopathy, ulitis and ulemorrhagia. Tender stems are used as tooth brushes. It is also useful in urethrorrhoea, cystorrhoea, diarrhoea and dysentery. Flowers are used for preparing a lotion for wounds and ulcers. Powder of dried flowers is a brain tonic and is useful as a snuff to relieve cephalgia. Unripe fruit is used as a masticatory and will help to fix loose teeth. Seeds are used for preparing suppositories in cases of constipation especially in children (Warrier et al,1995). The bark and seed coat are used for strengthening the gum and enter into the composition of various herbal tooth powders, under the name of “Vajradanti”, where they may be used along with tannin-containing substances like catechu (Acacia catechu), pomegranate (Punica granatum) bark, etc. The bark is used as snuff for high fever accompanied by pains in various parts of the body. The flowers are considered expectorant and smoked in asthma. A lotion prepared from unripe fruits and flowers is used for smearing on sores and wounds. In Ayurveda, the important preparation of Mimusops is “Bakuladya Taila”, applied on gum and teeth for strengthening them, whereas in Unani system, the bark is used for the diseases of genitourinary system of males (Thakur et al, 1989).

Distribution: It is cultivated in North and Peninsular India and Andaman Islands. It is grown as an avenue tree in many parts of India.

Botany: Mimusops elengi Linn. belongs to the family Sapotaceae. It is an evergreen tree with dark grey fissured bark and densely spreading crown. Leaves are oblong, glabrous and leathery with wavy margins. Flowers are white, fragrant, axillary, solitary or fascicled. Fruits are ovoid or ellipsoid berries. Seeds are 1-2 per fruit, ovoid, compressed, greyish brown and shiny (Warrier et al, 1995). Other important species belonging to the genus Mimusops are M. hexandra Roxb. and M. kauki Linn. syn. Manilkara kauki Dub.(Chopra et al, 1980).

Agrotechnology: Mimusops prefers moist soil rich in organic matter for good growth. The plant is propagated by seeds. Fruits are formed in October-November. Seeds are to be collected and dried. Seeds are to be soaked in water for 12 hours without much delay and sown on seedbeds. Viability of seeds is less. After germination they are to be transferred to polybags. Pits of size 45cm cube are to be taken and filled with 5kg dried cowdung and top soil. To these pits, about 4 months old seedlings from the polybags are to be transplanted with the onset of monsoon. Addition of 10kg FYM every year is beneficial. Any serious pests or diseases do not attack the plant. Flowering commences from fourth year onwards. Bark, flowers, fruit and seeds are the economic parts.

Properties and activity: -sitosterol and its glucoside, -spina-sterol, quercitol, taraxerol and lupeol and its acetate are present in the aerial parts as well as the roots and seeds. The aerial parts in addition gave quercetin, dihydroquercetin, myricetin, glycosides, hederagenin, ursolic acid, hentriacontane and -carotene. The bark contained an alkaloid consisting largely of a tiglate ester of a base with a mass spectrum identical to those of laburinine and iso-retronecanol and a saponin also which on hydrolysis gave -amyrin and brassic acid. Seed oil was comprised of capric, lauric, myristic, palmitic, stearic, arachidic, oleic and linoleic acids.

Saponins from seed are spermicidal and spasmolytic. The aerial part is diuretic. Extract of flower (1mg/kg body weight) showed positive diuretic action in dogs. Bark is tonic and febrifuge. Leaf is an antidote for snakebite. Pulp of ripe fruit is antidysenteric. Seed is purgative. Bark and pulp of ripe fruit is astringent (Husain et al, 1992).... west indian

Epstein–barr Virus

A virus that causes infectious mononucleosis; the virus is also associated with Burkitt’s lymphoma and cancer of the nasopharynx (see nasopharynx, cancer of).... epstein–barr virus

Slow Virus Diseases

A group of diseases of the central nervous system that occur many months or even years after infection with a virus. They cause gradual widespread destruction of nerve tissue, with progressive loss of brain function and a fatal outcome. Examples include Creutzfeldt–Jakob disease and kuru.... slow virus diseases

Human Immunodeficiency Virus

see HIV.... human immunodeficiency virus

Nile Blue

an oxazine chloride, used for staining lipids and lipid pigments. Nile blue A (Nile blue sulphate), which stains fatty acids, changes from blue to purplish at pH 10–11.... nile blue

Parainfluenza Viruses

a group of large RNA-containing viruses that cause infections of the respiratory tract producing mild influenza-like symptoms. They are included in the paramyxovirus group (see myxovirus).... parainfluenza viruses

Respiratory Syncytial Virus

(RSV) a paramyxovirus (see myxovirus) that causes infections of the nose and throat. It is a major cause of bronchiolitis and pneumonia in young children. In tissue cultures infected with the virus, cells merge together to form a conglomerate (syncytium). RSV is thought to have a role in *sudden infant death syndrome. Vulnerable children can be treated with *ribavirin, but most children just require supportive measures.... respiratory syncytial virus

West Nile 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

West Indian Medlar

Mimusops elengi

Sapotaceae

San: Bakulah

Hin: Bakul, Maulsiri

Ben: Bakul

Mal: Ilanji, Elanji

Tam: Magilam, Ilanci

Tel: Pogada

Kan: Pagademara

Guj: Barsoli, Bolsari

Importance: Spanish cherry, West Indian Medlar or Bullet wood tree is an evergreen tree with sweet- scented flowers having ancient glamour. Garlands made of its flowers are ever in good demand due to its long lasting scent. Its bark is used as a gargle for odontopathy, ulitis and ulemorrhagia. Tender stems are used as tooth brushes. It is also useful in urethrorrhoea, cystorrhoea, diarrhoea and dysentery. Flowers are used for preparing a lotion for wounds and ulcers. Powder of dried flowers is a brain tonic and is useful as a snuff to relieve cephalgia. Unripe fruit is used as a masticatory and will help to fix loose teeth. Seeds are used for preparing suppositories in cases of constipation especially in children (Warrier et al,1995). The bark and seed coat are used for strengthening the gum and enter into the composition of various herbal tooth powders, under the name of “Vajradanti”, where they may be used along with tannin-containing substances like catechu (Acacia catechu), pomegranate (Punica granatum) bark, etc. The bark is used as snuff for high fever accompanied by pains in various parts of the body. The flowers are considered expectorant and smoked in asthma. A lotion prepared from unripe fruits and flowers is used for smearing on sores and wounds. In Ayurveda, the important preparation of Mimusops is “Bakuladya Taila”, applied on gum and teeth for strengthening them, whereas in Unani system, the bark is used for the diseases of genitourinary system of males (Thakur et al, 1989).

Distribution: It is cultivated in North and Peninsular India and Andaman Islands. It is grown as an avenue tree in many parts of India.

Botany: Mimusops elengi Linn. belongs to the family Sapotaceae. It is an evergreen tree with dark grey fissured bark and densely spreading crown. Leaves are oblong, glabrous and leathery with wavy margins. Flowers are white, fragrant, axillary, solitary or fascicled. Fruits are ovoid or ellipsoid berries. Seeds are 1-2 per fruit, ovoid, compressed, greyish brown and shiny (Warrier et al, 1995). Other important species belonging to the genus Mimusops are M. hexandra Roxb. and M. kauki Linn. syn. Manilkara kauki Dub.(Chopra et al, 1980).

Agrotechnology: Mimusops prefers moist soil rich in organic matter for good growth. The plant is propagated by seeds. Fruits are formed in October-November. Seeds are to be collected and dried. Seeds are to be soaked in water for 12 hours without much delay and sown on seedbeds. Viability of seeds is less. After germination they are to be transferred to polybags. Pits of size 45cm cube are to be taken and filled with 5kg dried cowdung and top soil. To these pits, about 4 months old seedlings from the polybags are to be transplanted with the onset of monsoon. Addition of 10kg FYM every year is beneficial. Any serious pests or diseases do not attack the plant. Flowering commences from fourth year onwards. Bark, flowers, fruit and seeds are the economic parts.

Properties and activity: -sitosterol and its glucoside, -spina-sterol, quercitol, taraxerol and lupeol and its acetate are present in the aerial parts as well as the roots and seeds. The aerial parts in addition gave quercetin, dihydroquercetin, myricetin, glycosides, hederagenin, ursolic acid, hentriacontane and -carotene. The bark contained an alkaloid consisting largely of a tiglate ester of a base with a mass spectrum identical to those of laburinine and iso-retronecanol and a saponin also which on hydrolysis gave -amyrin and brassic acid. Seed oil was comprised of capric, lauric, myristic, palmitic, stearic, arachidic, oleic and linoleic acids.

Saponins from seed are spermicidal and spasmolytic. The aerial part is diuretic. Extract of flower (1mg/kg body weight) showed positive diuretic action in dogs. Bark is tonic and febrifuge. Leaf is an antidote for snakebite. Pulp of ripe fruit is antidysenteric. Seed is purgative. Bark and pulp of ripe fruit is astringent (Husain et al, 1992).... west indian medlar

Hantaan Virus

Haemorrhagic fever with kidney syndrome (HFRS). Has been known for years by the Chinese and other nations of antiquity. Over 3,000 cases recorded during the Korean War (1951- 1952), the disease taking its name from the River Hantaan, South Korea.

Cause: a virus spread by field mice, rats and other rodents. Incubation period: 2-3 weeks.

Symptoms: fever, headache, backache, severe nervous prostration, low blood pressure, red patches on skin, failure of kidneys, high protein levels in urine. Small red or purple spots indicate bleeding beneath the skin.

Treatment. Traditional. Ayurvedic:– Gotu Kola, Juniper. Dr Mattiolus regards Juniper as a preventative of the pestilence.

To be treated by or in liaison with a qualified medical practitioner. HARPAGOPHYTUM. See: DEVIL’S CLAW. ... hantaan virus

Zika Virus

a mosquito-borne virus that usually causes mild symptoms in humans, including fever, skin rashes, muscle and joint pain, and headache. However, infection during pregnancy can result in brain abnormalities of the fetus, notably *microcephaly. Zika virus can also trigger *Guillain–Barré syndrome. Infection is usually from a mosquito bite, although the virus may also be transmitted by sexual intercourse.... zika virus

Viruses

The smallest known types of infectious agent. It is debatable whether viruses are truly living organisms or just collections of molecules capable of selfreplication under specific conditions. Their sole activity is to invade the cells of other organisms, which they then take over to make copies of themselves. Outside living cells, viruses are inert.

A single virus particle (virion) consists of an inner core of nucleic acid, which may be either DNA or RNA, surrounded

by 1 or 2 protective protein shells (capsids). Surrounding the outer capsid may be another layer, the viral envelope, which consists mainly of protein. The nucleic acid consists of a string of genes that contain coded instructions for making copies of the virus.

Common viral diseases include the common cold, influenza, and chickenpox (caused by the varicella–zoster virus). AIDS is caused by the human immunodeficiency virus (HIV).... viruses

Coxsackie Virus

(echovirus) one of a group of RNA-containing viruses that are able to multiply in the gastrointestinal tract (see enterovirus). About 30 different types exist. Type A Coxsackie viruses generally cause less severe and less well-defined diseases, such as *hand, foot, and mouth disease, although some cause meningitis and severe throat infections (see herpangina). Type B Coxsackie viruses cause inflammation or degeneration of heart tissue, resulting in pericarditis or myocarditis, or brain tissue, producing meningitis or encephalitis. They can also attack the muscles of the chest wall, the bronchi, pancreas, thyroid, or conjunctiva and recent evidence suggests they may be implicated in diabetes in children and in motor neuron disease. See also Bornholm disease.... coxsackie virus

Ebola Virus

a virus responsible for an acute infection in humans with features similar to those of *Marburg disease. Transmission is by contact with infected blood and other body fluids and the incubation period is 2–21 days (7 days on average). The mortality rate is 53–88%, but intensive treatment (including rehydration) in the early stages of the disease can halt its rapid and usually irreversible progression to haemorrhaging of internal organs. Until recently, sporadic but short-lived outbreaks have occurred in Africa since 1976, when the virus was first identified during an outbreak in the region of the Ebola river, in Zaïre (now Democratic Republic of Congo). A major epidemic of the disease broke out in West Africa at the end of 2013 and lasted until May 2016: over 11,000 people died. An unknown species of animal – possibly a fruit bat – is assumed to act as a reservoir for the virus between outbreaks of the disease in humans.... ebola virus

Bay, West Indian

Pimenta racemosa

FAMILY: Myrtaceae

SYNONYMS: Myrcia acris, Pimenta acris, myrcia, bay, bay rum tree, wild cinnamon, bayberry, bay leaf (oil).

GENERAL DESCRIPTION: A wild-growing tropical evergreen tree up to 8 metres high, with large leathery leaves and aromatic fruits.

DISTRIBUTION: Native to the West Indies, particularly Dominica where the essential oil is produced.

OTHER SPECIES: There are several other varieties, for example the anise-scented and lemon-scented bay, the oils of which have a totally different chemical composition. Not to be confused with bay laurel, the common household spice, nor with the North American bayberry or wax myrtle (Myrcia cerifera) well known for its wax yielding berries.

HERBAL/FOLK TRADITION: The West Indian bay tree is often grown in groves together with the allspice or pimento bush, then the fruits of both are dried and powdered for the preparation of the household allspice. The so-called bay rum tree also provides the basic ingredient for the famous old hair tonic, which is made from the leaves by being distilled in rum. ‘A hair application with both fragrant and tonic virtues … useful for those who suffer from greasy hair and need a spirit-based, scalp-stimulating lotion to help them to control their locks!’9

ACTIONS: Analgesic, anticonvulsant, antineuralgic, antirheumatic, antiseptic, astringent, expectorant, stimulant, tonic (for hair).

EXTRACTION: Essential oil by water or steam distillation from the leaves. An oleoresin is also produced in small quantities.

CHARACTERISTICS: A dark yellow mobile liquid with a fresh-spicy top note and a sweet-balsamic undertone. It blends well with lavander, lavandin, rosemary, geranium, ylang ylang, citrus and spice oils.

PRINCIPAL CONSTITUENTS: Eugenol (up to 56 per cent), myrcene, chavicol and, in lesser amounts, methyl eugenol, linalol, limonene, among others.

SAFETY DATA: Moderately toxic due to high eugenol content; also a mucous membrane irritant – use in moderation only. Unlike bay laurel, however, it does not appear to cause dermal irritation or sensitization.

AROMATHERAPY/HOME: USE

Skin Care: Scalp stimulant, hair rinse for dandruff, greasy, lifeless hair, and premoting growth.

Circulation, Muscles And Joints: Muscular and articular aches and pains, neuralgia, poor circulation, rheumatism, sprains, strains.

IMMUNE SYSTEM: Colds, ’flu, infectious diseases.

OTHER USES: Extensively used in fragrance work, in soaps, detergents, perfumes, aftershaves and hair lotions, including bay rum. Employed as a flavour ingredient in many major food categories, especially condiments, as well as alcoholic and soft drinks.... bay, west indian




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