Differential Kinetics of Immune Responses Elicited by Covid-19 Vaccines

Kinetics of Immune Response to Covid-19 Vaccines B-cell and T-cell responses were measured to assess the stability and duration of vaccine-induced immunity. Responses to BNT162b2 and mRNA-1273 peaked early and declined over 6 to 8 months. The response to Ad26.CoV2.S reached a lower peak but continued without evidence of notable decline for 8 months. Response levels correlating with protection have not yet been defined.

Automated summary

The kinetics of immune response to Covid-19 vaccines were studied, showing varying peak levels and durations of response for different vaccines. However, the response levels correlating with protection have not been defined yet.