It’s official - booster shots are coming. The White House COVID Task Force announced today that all vaccinated Americans should get a third shot starting as soon as September 20. So when should you line up for your booster shot? Eight months after receiving your second dose. And in Los Angeles, health officials are stepping up COVID-19 precautions. Masks will be mandatory at all indoor “mega events” of over five thousand people, even if you’re vaccinated.