Viruses are constantly mutating. What’s concerning is sometimes these changes affect how the virus spreads, how sick you may get if you're infected or how well our vaccines work against them. But the good news is, if we battle pandemic fatigue for a little bit longer, we can collectively take steps to make sure these variants don’t become dominant in more communities. Here’s what you need to know about #variants ➡️➡️➡️ Update: new analyses posted by the FDA on Feb 24 showed the Johnson and Johnson vaccine’s efficacy rate in South Africa is 64% Image descriptions in comments.