What does efficacy even mean? Is it the same thing as effectiveness? (Spoiler: Not quite.) Also in this article, compare efficacy rates for the three authorized COVID-19 vaccines.
If you’re still sick weeks after an initial COVID-19 infection, you’re not alone. “Post-COVID” is affecting many COVID-19 survivors. Find out common post-COVID symptoms and how to tell if you’re contagious.
Some headaches you can handle by yourself at home, while others require a doctor’s help. How can you know which is which? Check out this handy infographic.