Here’s what to know about the flu viruses. Influenza A viruses come in many varieties. Four subtypes commonly affect humans, Dr. Lowen said — you may have heard of H1N1, for example.

Only influenza A viruses infect nonhuman hosts, and a reassortment of genes can occur between those subtypes that typically infect animals and those that infect humans, resulting in antigenic ...

Provide results in 15-30 minutes and can distinguish between flu A and flu B; cannot determine subtypes of flu A, strain information, or seasonal vs. novel flu A PCR test: Results can take hours ...

During the COVID-19 pandemic, global influenza cases dropped dramatically due to lockdowns and travel restrictions. However, ...

Although travel restrictions and social measures during the COVID-19 pandemic led to a dramatic global drop in seasonal influenza cases, certain influenza lineages in specific regions kept the virus ...

If you missed the early fall push for flu and COVID-19 vaccines, it's not too late.Health officials say it's important to get ...

If the influenza virus infecting cattle workers starts a pandemic, help in the form of a vaccine is months away ...

New research shows that flu vaccines provide strong protection for children but underscores the need for improved efficacy against specific subtypes like H3N2. Rapid communication: Effectiveness ...

“I think there’s an opportunity for using H5 vaccines in cattle because it’s the only subtype that have knowledge of ...

A new study revealed more farmworkers had signs of infection, even though they reportedly did not display symptoms of illness.

According to an infectious disease expert, Hong Kong’s flu season is expected to start in December; it is likely to have two ...

An epidemiologist makes the case that a rush of research to stop a swine flu outbreak led to an accidental lab release of an ...