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Bill Padula, PhD Profile picture
Bill Padula, PhD
@DrWmPadula
Health economics professor @USC @SchaefferCenter | Principal & Co-Founder @StageHEOR | Past President & CEO @theNPIAP | Combines #PharmacoEconomics with #ML #AI
Feb 24, 2021 • 10 tweets • 5 min read
Many have been talking excitedly about how 6-straight weeks of declining #COVID19 Cases are an indicator that USA reaching natural herd immunity in the next 4-6 weeks. Here are a bunch of reasons why that is bogus... #CoronavirusPandemic #vaccines 1. 28.2 Million COVID cases in USA. Undoubtedly an underestimate due to lack of testing for symptomatic and asymptomatic cases, but far short of any relevant number to herd immunity in a population of 300+ million. GAVI says you need >65% immunization to protect herd