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CDC officials warned of "impending doom" as thousands of maskless Spring Breakers continue to descend on Miami and more states have reopened.

Dr. Rochelle Walensky, head of the U.S. Centers for Disease Control and Prevention, choked back tears as she warned of "impending doom" in an effort to prevent a fourth Covid-19 surge.

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Despite over 150 million Americans receiving vaccine injections, Dr. Walensky said the United States surpassed 30 million cases of COVID-19 on Sunday.

"I'm speaking today not necessarily as your CDC director, but as a wife, as a mother, as a daughter to ask you to just please hold on a little while longer... Right now, I'm scared," she said in a video statement.

She added that the U.S. saw a 10 percent increase in new cases compared with the previous week. Additionally, hospitalizations have increased and deaths are starting to rise.

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CDC officials discouraged "nonessential travel" and encouraged mask-wearing and social distancing to stop the spread of the virus and its dangerous variants.

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But their warnings fell on deaf ears in Florida, where Spring break continues uninterrupted. Governors in other states have relaxed Covid-19 restrictions and reopened their states.

Watch Dr. Walensky's video below.