As seasonal respiratory illnesses surge across India, from flu waves like H3N2 to sporadic viral fevers and lingering COVID-19 cases, distinguishing between these common infections is essential for ...

For the first time, scientists have been able to watch the flu virus live as it infects human airway cells. They developed a new technique which makes the viral genetic material light up under the ...

Forget COVID-19 and the flu. A "mystery throat virus" is going around, causing sore throat, runny nose, fever and even diarrhea -- and offering no real treatment. The odds are fairly high that ...

WASHINGTON (AP) — Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to keep growing with holiday travel. That variant, known as “subclade K,” led to ...

Flu symptoms often arrive together. Fever is believed to make the lungs less hospitable to viral multiplication. Coughing and sneezing help clear excess mucus from the airways. The heavy fatigue and ...

Several zoonotic diseases that can leap from animals to humans are becoming increasingly diverse in their modes of transmission. As global health surveillance intensifies, two names have dominated ...

Johanna Harvey, an assistant professor of wildlife disease ecology at the University of Rhode Island, has described bird flu ...

As a fatal outbreak of the virus on an Atlantic cruise ship raises concerns about human-to-human transmission, here’s what you need to know ...

While the disease primarily affects birds, health experts say certain strains of the virus, especially H5N1, can occasionally infect humans and cause severe illness.

Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to keep growing with holiday travel. That variant, known as “subclade K,” led to early outbreaks in ...