Here are five takeaways from the remarks by Fauci, who is the government’s top infectious disease expert, heading the National Institute of Allergy and Infectious Diseases:

1. Vaccinated people should still be cautious
   “The instinct is to say, ‘We have a really good vaccine, I’m vaccinated, I have a 95% effective vaccine, why can’t I do whatever I want to do?’,” Fauci said. “Ultimately, you may be able to do that but not right now because there are things we don’t know.”

Fauci said it’s still unknown whether the vaccine prevents a vaccinated person from spreading the illness “so we say you’ve got to wear a mask.”

Fauci also said he thinks that if individuals get COVID-19 after being vaccinated, the level of virus in their system will likely be substantially lower than it would be in a person who hasn’t been vaccinated. “There’s a study from Israel that strongly suggests that. But we’re doing a study now to try and nail that down, and if in fact we find that out, then you’re going to see a pulling back on some of the restrictions, but we’re not there yet.”