The flu is a contagious respiratory infection caused by influenza viruses that spread easily. It can cause mild to severe illness. The flu causes thousands of hospitalizations and deaths every year, even in healthy children and adults. Act fast if you have symptoms: aafa.org/flu #FightFlu | Asthma and Allergy Foundation of America (AAFA)

Influenza, often called the flu, is a viral infection that affects your lungs and airways. Flu symptoms are a little bit like the common cold but are much more severe. Read more here: https://msdmnls.co/47LXF4N | MSD Manual Consumer

The efficacy of influenza vaccines developed with eggs can be reduced by egg-adaptive mutations. To avoid this reduced efficacy, influenza vaccine viruses have been developed in a mammalian canine kidney cell line. https://nej.md/3AJBcSs | The New England Journal of Medicine

【Protect yourself and those around you, get seasonal influenza vaccination early】​ ​ Seasonal influenza vaccination (Flu vaccine) is a safe and effective means to prevent flu and its complications. There is increasing evidence suggesting that a person who gets influenza and COVID-19 at the same time may be more seriously ill and would have a higher risk of death, and Flu vaccine may reduce the likelihood of hospitalisation and the length of stay. Both Flu vaccination and COVID-19 vaccination are