Viral and immunologic evaluation of smokers with severe COVID-19.
Sci Rep
; 13(1): 17898, 2023 10 19.
Article
in En
| MEDLINE
| ID: mdl-37857680
ABSTRACT
Smoking negatively affects B cell function and immunoglobulin levels, but it is unclear if this immune dysfunction contributes to the risk of severe COVID-19 in smokers. We evaluated binding IgM, IgA and IgG antibodies to spike and receptor binding domain antigens, and used a pseudovirus assay to quantify neutralization titers in a set of 27 patients with severe COVID-19. We found no significant differences between binding and neutralization antibody responses for people with a smoking history and people who never smoked. High plasma viral load, but not antibody titers, was linked to an increased risk of death. Humoral immune dysfunction was not a major driver of severe COVID-19 in smokers.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
COVID-19
Limits:
Humans
Language:
En
Journal:
Sci Rep
Year:
2023
Document type:
Article
Affiliation country: