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Doctor insights on: Human Viruses List

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Explan why one human immunodeficiency virus test cannot definitely diagnose hiv?

Explan why one human immunodeficiency virus test cannot definitely diagnose hiv?

Good question: The HIV test to which you refer is an elisa assay which is quite sensitive but not as specific as the confirmatory western blot. These measure the presence of antibodies to the HIV and these may take from 2 wks to several months to develop. If you run the test before the antibodies have appeared, it will be negative, only to change to positive once antibody formation has occurred. ...Read more

Virus (Definition)

A virus is a small infectious agent that can replicate only inside the living cells of an organism. Viruses can infect all types of organisms, from animals and plants ...Read more


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What cause viruses in the humans body?

What cause viruses in the humans body?

Ecology of viruses: Viruses, like many other living things, are just looking for a 'home'. All of life is like that -and we can find viruses affecting not just humans but many other species of animals, even plants! The question is, 'is this virus causing a disease'? That is what doctors are for -to help you determine when to step in and take action. If you are concerned about a certain virus, ask more questions. ...Read more

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How do viruses (h5n1) transmit from the animals to the humans?

How do viruses (h5n1) transmit from the animals to the humans?

Personal contact: Research is incomplete, but so far transmission to humans from animals (mostly birds) has been uncommon (happily) and mostly personal contact. Airborne transmission does not seem important at this time, but there is fear this could change if the virus mutates. If so, and if highly transmissible (i.e. infection by only a few virus particles), the world could see major epidemics. Fingers crossed! ...Read more

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Can there be a virus or disease that only affects human beings?

Can there be a virus or disease that only affects human beings?

Measels (rubeola).: Measels is a viral infection that is thought to infect humans only. Measles is spread through respiration (contact with fluids from an infected person's nose and mouth, either directly or through aerosol transmission), and is highly contagious. Measels can be prevented by childhood vaccination against the virus. ...Read more

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Is there a test that detects "reverse transcriptase" (not a specific virus) in humans?...Just as a general test to rule-out certain kinds of viruses?

No, I don't think so: I have not seen a test like that for use in patients. Although, it could be being developed or used as a part of a research study. ...Read more

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What is the human parvo virus?

What is the human parvo virus?

Parvovirus: It is a virus that causes a fever and rash in.Children. Infection causes a transient slow down in red cell formation which is important in people with hemolytic anemias like sickle cell and during pregnancy when the fetus may die. ...Read more

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What is the parvo virus and what can it do to a human?

What is the parvo virus and what can it do to a human?

Fifth Disease: Parvo b19 virus causes upper respiratory symtpoms and low grade fever which resolve promptly, to be followed by a facial rash with a "slapped cheek" appearance. The remainder of the body soon develops rashes, sparing the palms and soles. The rash will soon show central clearing, which has a "lacy, fishnet" appearance. The illness is mild and self-limited, and the rash waxes & wanes. No treatment. ...Read more

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How did the ebola virus start to invade humans?

How did the ebola virus start to invade humans?

Wbola: 1 theory is that bats are the reservoir for Ebola. Partially eaten fruit dropped by bats may be eaten by Diuker antelopes, monkeys, apes or other mammals. Eating or handling bush meat from them can transmit the disease to humans. ...Read more

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Does the human body even use the complement system at all to fight-off viruses?

Yes: If viral antigens or epitopes are expressed on the surface of the infected cell, then yes. They may "fix complement" leading to lysis. ...Read more

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How Nipah virus affecs on human & how it kills? What are the symptoms of affected with virus? Pls describe me about this

How Nipah virus affecs on human & how it kills? What are the symptoms of affected with virus? Pls describe me about this

See links: http://www.cdc.gov/vhf/nipah/ http://www.who.int/csr/disease/nipah/en/ NiV infection in humans has a range of clinical presentations, from asymptomatic infection (no symptoms) to acute respiratory (lung infection) syndrome and fatal encephalitis (infection of brain) ...Read more