Neutralizing Antibody Response Characteristics in Elderly Patients with SARS-CoV-2 Infection and Their Association with Clinical Phenotypes.

In a multivariate logistic regression model adjusted for age, sex, comorbidities, and disease duration, vaccination showed a trend toward a 19.4% reduction in the risk of severe disease (OR = 0.806).

also in 53,322 other papers

The three-dose group showed a stronger NAb response than the two-dose group, although the difference did not reach statistical significance ( Figure 2 B), possibly due to heterogeneity in immune responses among the elderly.

also in 111,027 other papers