Risk Factors for Being Seronegative following #SARS-CoV-2 Infection in a Large Cohort of Health Care Workers in Denmark | Microbiology Spectrum
▻https://journals.asm.org/doi/10.1128/Spectrum.00904-21
Only a few (2.4%) HCW were not seropositive. Asymptomatic or mild infection as well as a BMI above 30 were associated with being seronegative.