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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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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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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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How is human parvo virus transmitted?

How is human parvo virus transmitted?

Fifth disease: Here is a nice discussion by the cdc on your question. http://www.cdc.gov/parvovirusb19/fifth-disease.html. ...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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What is the origin of human t-lymphotrophic virus? Did it originate from primates (simian viruses?)?

Probably: The human t-lymphotropic virus type i is a human RNA retrovirus that is known to cause adult t-cell leukemia and lymphoma, and a demyelinating disease called htlv-i associated myelopathy/tropical spastic paraparesis. Htlv-i is one of a group of closely related primate t lymphotropic viruses. The ones that infect old-world primates are called simian t-lymphotropic viruses. ...Read more

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What does a virus do to the human body?

What does a virus do to the human body?

Virus: attaches to cell membrane, cross membrane then depending on type of virus makes you sick. Great wikipedia question. ...Read more

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How does the oropouche virus affect humans?

How does the oropouche virus affect humans?

Oropouche virus: The Oropouche virus (OROV) is one of the most common orthobunyaviruses. When OROV infects humans, it causes a rapid fever illness called Oropouche fever. Much more detail at Wikipedia ...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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Is it possible for a human to be immune to all kind of virus?

Is it possible for a human to be immune to all kind of virus?

No: Viruses constantly change. Humans become immune to viruses by making antibodies. Antibodies are made only after exposure to the virus. Since there are an infinite number of possibilities of viruses the human body could potentially make antibody against all of them but the person has to be exposed to them. Unlikely that a person could live long enough to be exposed to an infinite number of viruses. ...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

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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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How can humans contract the HIV virus?

How can humans contract the HIV virus?

HIV: Hiv can be transmitted via anal ; oral sex, blood transfusion, use of contaminated needles, breastfeeding ; during pregnancy ; delivery. ...Read more

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How are humans infected by west nile virus?

How are humans infected by west nile virus?

Mosquito bite: West Nile Virus is a mosquito borne infection that originated in the tropics. It causes a flu-like syndrome in 20% of those infected . It causes neuroinvasive disease in ...Read more

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What are human papilloma viruses (hpv)?

DNA viruses: Hpvs are dna viruses that can cause warts, premalignancy / dysplasia, and cancers in people. Some strains are associated with skin infections and cause warts only (like warts on feet and fingers). Other strains are more commonly seen on the genitals (cervix, vagina, penis, anus, etc...) and can be spread by sexual contact. The pap test and hpv dna tests and biopsies are used to diagnose hpv. ...Read more