Dr. Peter Hotez on health: what the evidence says · JRE #1451

What the evidence says 01 / RECORD

Hotez, speaking on April 1, 2020, asserted that COVID-19 is five to ten times more lethal than seasonal influenza. This tracked contemporaneous, case-fatality-based comparisons: a JAMA Internal Medicine analysis (Faust & del Rio, May 2020) found New York City's COVID-19 case fatality rate roughly 9.5 times higher than a severe seasonal flu comparator, though the authors cautioned the comparison was imprecise given differences in testing and reporting. As broader seroprevalence testing later revealed many more mild and asymptomatic SARS-CoV-2 infections than initially counted, population-wide infection fatality rate (IFR) estimates fell substantially. A widely cited meta-analysis of worldwide seroprevalence studies (Ioannidis, Bulletin of the World Health Organization, 2021) put the median COVID-19 IFR at about 0.23-0.27% (about 0.05% in people under 70), compared with a commonly cited seasonal influenza IFR of roughly 0.1%. Under this later, more complete accounting, COVID-19's overall lethality relative to flu is generally estimated at roughly two to three times higher rather than five to ten times, though the ratio varies considerably by age, location, and time period, and was substantially higher earlier in the pandemic and in older populations. The claim reflects a reasonable early-pandemic estimate given the data available at the time, but later, broader data showed it was on the high end to overstated once the true scale of mild and undetected infections became clear.