Both H1N1 and COVID-19 spread across the U.S. faster and more unpredictably than early detection systems could keep up.
The deadly COVID-19 pandemic, which lasted for several years, drastically changed the world, affecting nearly every part of a person’s daily life. Millions of people lost their lives, economies slowed ...
evolved to become less deadly over time, allowing it to continue infecting people in three separate pandemics over more than a thousand years, new research finds. The first pandemic – the plague of ...