Thread by @DrEricDing

REINFECTION? Fauci battled with Senator @RandPaul who insists there’s no reinfection.

Actually—big study on this exact topic just yesterday in **4 million** Danish people found—prior #COVID19 infection only protected 80%, & even lower 47% in age >=65! 🧵

2) Hell yes there is a study just yesterday. And hell yes it was done in over 4,000,000 with 10 mil tests—basically everybody in Denmark! Like the entire country.

So hell yes it is the most comprehensive study in the whole world on #COVID19 reinfection.
thelancet.com/action/showPdf…

3) The paper specifically says: “Through analysis of Danish population-level surveillance data with more than 10 million person-identifiable PCR test results in 2020, we estimated protective immunity to be approximately 80–83% in people younger than 65 years.”

4) “Among those aged 65 years and older, immunity was estimated to be approximately 47%.
Implications of all the available evidence
Natural infection with SARS-CoV-2 led to observed protection against reinfection estimated to be approximately 80% after
6 months.

5) “However, the observed low natural immunity in people aged 65 years and older **underlines the need to vaccinate previously infected individuals***, in particular in this age group.”

FYI: @RandPaul @SenRandPaul