There are currently trials in the US for a universal influenza vaccine which will counter most possible mutations of the influenza virus: https://www.nih.gov/ne

There are currently trials in the US for a universal influenza vaccine which will counter most possible mutations of the influenza virus: https://www.nih.gov/news-events/news-releases/nih-launches-clinical-trial-universal-influenza-vaccine-candidate https://www.nih.gov/news-events/news-releases/nih-launches-c...