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Background
The humoral immune response following COVID‐19 vaccination in nursing home residents is poorly known. A longitudinal study compared levels of IgG antibodies against the spike protein (S‐RBD IgG) (S‐RDB protein IgG) after one and two BNT162b2/Pfizer jabs in residents with and without prior COVID‐19.
Methods
In 22 French nursing homes, COVID‐19 was diagnosed with real‐time reverse‐transcriptase...
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