\"In public spaces, the vaccination status of other people or whether they are at increased risk for severe COVID-19 is likely unknown. Therefore, fully vaccinated people should continue to follow guidance to protect themselves and others, including wearing a well-fitted mask, when indoors or in an outdoor setting or venue where masks are required,\" according to the CDC.

Less than a third of the country has been fully vaccinated, meaning much of the population remains at risk. And while rising vaccinations are credited for helping to blunt the impact of the pandemic – states are reporting a nearly 17 percent decline in the last week -- the U.S. daily case average is still nearly 55,000.

Dr. Anthony Fauci, the nation's top infectious disease expert, has said previously that he would want to see that number drop below 10,000 a day before states consider pulling back on mitigation measures like mask mandates. Until then, people can protect themselves by getting vaccinated, he said.

\"Even when you're talking about variants, indoors, outdoors -- get vaccinated and you will certainly have a degree of protection,\" Fauci said Tuesday.

Last month, Walensky said she feared \"impending doom\" as cases appeared to be back on the rise after a massive post-holiday surge. On Tuesday, the director said that curve is now \"stabilizing,\" which she attributes to rising vaccination numbers. But, she warned, future success could vary by region.

\"Where we have low areas of vaccination, we are going to potentially see more outbreaks, which is why I think it's really, we have to be careful,\" she said.

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