Influenza vaccines have a surprising health benefit: they might also prevent COVID-19, particularly in its most severe forms1. A study of more than 30,000 health-care workers in Qatar found that those who got a flu jab were nearly 90% less likely to develop severe COVID-19 over the next few months, compared with those who hadn’t been recentl
Influenza vaccines have a surprising health benefit: they might also prevent COVID-19, particularly in its most severe forms1. A study of more than 30,000 health-care workers in Qatar found that those who got a flu jab were nearly 90% less likely to develop severe COVID-19 over the next few months, compared with those who hadn’t been recentl