Learn how scientists identified genetic clues that distinguish natural viral spillovers from lab-handled viruses — and why ...

The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could help the virus spread more easily in humans, scientists say. There is no indication that ...

Medically reviewed by Michael Menna, DO The flu usually starts quickly.Severe flu cases can lead to pneumonia, with symptoms such as chest pain, cough, and difficulty breathing.Children under 2 years ...

India is moving quickly to contain a Nipah virus outbreak in the eastern state of West Bengal after two cases were confirmed by the federal health ministry. Nearly 200 people have been quarantined ...

Unlike HIV or HBV, HCV replicates its genome directly into RNA without a DNA intermediate, so it lacks a latent, nuclear form that defies ready immunological clearance. In order for the virus to exist ...

Samples from a patient who recently developed the first severe case of H5N1 bird flu in the U.S. showed mutations that may make it easier for the virus to bind to cell receptors in the human upper ...

The incubation period, or the time between the bite by an infected mosquito and the onset of clinical signs, ranges from 3 to 14 days. Most people who are infected with West Nile virus either have no ...

SCHOOL groups and tourists are visiting a cave with bats that carry Marburg virus, previously flagged as having pandemic ...

Decades of research have showed scientists what mutations to watch for in the H5N1 virus. The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could ...

The Centers for Disease Control (CDC) recommends screening for exposure with HCV antibody (anti-HCV) and follow-up with HCV-RNA testing. About 70% to 86% of patients with positive results of anti-HCV ...