Dr. Bob calls up University of Florida biostatistician Natalie Dean to ask whether or not we've hit the fourth wave. They discuss where cases are surging, why it's regional as opposed to national, and what role the vaccines will play in keeping this wave smaller than the previous three. Plus, how she's using Legos to help the masses better understand vaccine efficacy.

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Follow Natalie Dean on Twitter @nataliexdean. 

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Check out these resources from today’s episode: 

• Check out this Washington Post article debating whether or not we’re entering a fourth wave: https://www.washingtonpost.com/health/2021/04/04/covid-fourth-wave/ 
• Learn more about the COVID-19 situation in Michigan, and what it means for a fourth wave: michigan-infection-surge-fourth-wave.html">https://slate.com/technology/2021/04/covid-michigan-infection-surge-fourth-wave.html 
• Don’t miss Natalie’s tweet explaining vaccine efficacy with Legos: https://twitter.com/nataliexdean/status/1360701856616493060 
• Read more about herd immunity, and why it’s so difficult to achieve: https://www.cnn.com/2021/03/30/health/herd-immunity-covid-shifts/index.html 
• Keep up the vaccine rollout in the United States: https://covid.cdc.gov/covid-data-tracker/#vaccinations 
• Learn more about Dr. Bob Wachter and the UCSF Department of Medicine here: https://medicine.ucsf.edu/ 

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