📍Huge ANTIBODY study in NYC among 40,000 health care professionals. Key #COVID19 findings:— Eric “Masks + Ventilation for Aerosols” Feigl-Ding (@DrEricDing) August 9, 2020
13.7% were seropositive.
Of 6078 w/ previous PCR testing, 34.8% were PCR positive.
Of previous PCR-positives, 6.5% had with negative antibody test results. 🧵
https://t.co/Wjk30GbGrP