Elevated serum IgA following vaccination against SARS-CoV-2 in a cohort of high-risk first responders.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
02 Sep 2022
02 Sep 2022
Historique:
received:
25
02
2022
accepted:
24
08
2022
entrez:
2
9
2022
pubmed:
3
9
2022
medline:
9
9
2022
Statut:
epublish
Résumé
IgA plays an important early neutralizing role after SARS-CoV-2 infection. Systemically administered vaccines typically produce an IgM/IgG predominant response. We evaluated the serum anti-spike (anti-S) IgG, anti-nucleocapsid (anti-N) IgG and anti-S IgA response following vaccination against SARS-CoV-2 in a cohort of first-responders. Among the 378 completely vaccinated participants, 98% were positive for anti-S IgG and 96% were positive for anti-S IgA. Nine percent were positive for anti-N IgG suggesting prior exposure to SARS-CoV-2. No statistically significant difference was seen in IgA response based on prior evidence infection (p = 0.18). Ninety-eight of those receiving the Moderna vaccine (98%) were positive for anti-S IgA as compared to 91% of those who received the Pfizer vaccine (p = 0.0009). The high proportion of participants observed to have a positive anti-S IgA response after vaccination suggests that the vaccines elicit a systemic response characterized by elevated levels of both IgG and IgA.
Identifiants
pubmed: 36056118
doi: 10.1038/s41598-022-19095-7
pii: 10.1038/s41598-022-19095-7
pmc: PMC9437396
doi:
Substances chimiques
Antibodies, Viral
0
Immunoglobulin A
0
Immunoglobulin G
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
14932Informations de copyright
© 2022. The Author(s).
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