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. {@Rochelle Walensky, MD, MPH@} {@President Biden@} - I ’m questioning the CDC director ’s leadership . The new mask guidance is confusing & discriminates against the disabled & children . And to go from “ impending doom ” to this in 45 days ? I ’m on your team , Joe , but I have doubts about Walensky . # COVID19
 Rochelle Walensky, MD, MPH, President Biden, CDC, Joe, Walensky
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 Rochelle Walensky, MD, MPH, President Biden, CDC, Joe, Walensky