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Low Levels of Neutralizing Antibodies After Natural Infection With Severe Acute Respiratory Syndrome Coronavirus 2 in a Community-Based Serological St

Mary Wilson

Well-known member
Published: 02 March 2022

https://doi.org/10.1093/ofid/ofac055

Thomas W McDade, Amelia Sancilio, Richard D’Aquila, Brian Mustanski, Lauren A Vaught, Nina L Reiser, Matthew E Velez, Ryan R Hsieh, Daniel T Ryan, Rana Saber,
Elizabeth M McNally, Alexis R Demonbreun


Abstract

Background
Confidence in natural immunity after infection with severe acute respiratory syndrome coronavirus 2 is one reason for vaccine hesitancy.

Methods
We measured antibody-mediated neutralization of spike protein-ACE2 receptor binding in a large community-based sample of seropositive individuals who differed in severity of infection (N = 790).

Results
A total of 39.8% of infections were asymptomatic, 46.5% were symptomatic with no clinical care, 13.8% were symptomatic with clinical care, and 3.7% required hospitalization. Moderate/high neutralizing activity was present after 41.3% of clinically managed infections, in comparison with 7.9% of symptomatic and 1.9% of asymptomatic infections.

Conclusions
Prior coronavirus disease 2019 infection does not guarantee a high level of antibody-mediated protection against reinfection in the general population.

https://academic.oup.com/ofid/article/9/3/ofac055/6541150?searchresult=1&login=false
 
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