or antigenic shift (which for flu is usually the acquisition of a whole new segment of RNA). Any scientist or physician interested in the influenza virus itself, and all its fascinating ...

The isolation of influenza virus 80 years ago in 1933 very quickly led to the development of the first generation of live-attenuated vaccines. The first inactivated influenza vaccine was ...

Aug. 19, 2024 — The avian influenza virus needs to mutate to cross the species barrier and to infect and replicate within mammalian cells. Scientists have now deciphered the structure of the ...

Unlike past flu shots, flu vaccines for the 2024-2025 season don't contain the "Yamagata lineage" of influenza viruses because evidence suggests that type of flu no longer exists. When you ...

Researchers found that natural immunity from previous flu infections has a significant impact on how well future influenza vaccinations work. In a new study funded by the National Institutes of ...

Kids go to school, adults spend more time gathered indoors, people breathe and speak and sneeze and cough at one another, and the latest influenza virus spreads widely. The reason flu season seems ...

A child is given a flu shot. The flu is caused by various influenza viruses that impact the respiratory system. For the 2024-2025 flu season, the CDC expects the dominant influenza viruses in the ...

“This is a natural phenomenon linked to the unpredictability of the influenza epidemiology: the viruses can mutate as they move across populations and geographies,” said Thomas ...

There were 200 pediatric flu-related deaths in the 2023-2024 season. The number of kids dying from influenza in the 2023-2024 season has set a new record for a regular flu season, after one new ...

is a brand-name vaccine used to help prevent influenza (flu) in certain adults and children. As with other drugs, FluMist can cause side effects, such as runny nose and headache. Healthcare ...

On September 20, 2024, the U.S. Food & Drug Administration (FDA) announced they had approved an at-home nasal spray influenza (flu) vaccine. The vaccine, FluMist, can be administered by either the ...

Box 1. Current nomenclature for influenza viruses (WHO 1980). The formal nomenclature for the designation of influenza viruses was revised and published by the WHO [43]. The year of isolation ...