What is West Nile virus? West Nile is a virus that was first identified in the West Nile region of Uganda in 1937 and subsequently caused outbreaks throughout Africa, the Mediterranean region and ...

Knowing how germs are transmitted is key to preventing disease, and it varies for different bacteria, viruses, and other pathogens. In some cases, you have to come into direct contact with an infected ...

Transmission of hepatitis A can occur when someone consumes food or water containing the hepatitis A virus. Someone with a hepatitis A infection can also transmit the virus through close physical ...

Scientists have warned H5N1 bird flu could make a dangerous leap to humans, triggering a global health crisis.

Hepatitis B can spread relatively easily through contact with the blood or body fluids of someone who has the virus, especially in certain high risk situations. Hepatitis B is a liver infection caused ...

Face masks can help to reduce transmission of respiratory viruses such as influenza, according to experts and medical ...

Scientists have learned how plants keep viruses from being passed to their offspring, a finding that could ensure healthier crops. The discovery could also help reduce the transmission of diseases ...

SARS-CoV-2, the virus responsible for COVID-19, is widespread among wildlife species, according to new research. The virus was detected in six common backyard species, and antibodies indicating prior ...

AIDS was a mystery disease when first formally recognized in patients in the U.S. in 1981. Transmission through sexual contact was rapidly recognized, but the source was initially unknown. Just three ...

Daniel Pastula does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...