Fig. 3: Kaplan–Meier survival curve of risk of breakthrough infection by Spike antibody level in quartiles. | Nature Communications

Fig. 3: Kaplan–Meier survival curve of risk of breakthrough infection by Spike antibody level in quartiles.

From: SARS-CoV-2 antibodies and breakthrough infections in the Virus Watch cohort

Fig. 3

The first anti-S level for participants after their second dose of vaccine and 1st July 2021 was used. The risk of breakthrough infections for the lowest quartile (upper limit 413 U/ml) began to diverge from the risk for higher quartiles after around 20 days of follow-up. The risk of breakthrough infections for the second lowest quartile (414–934 U/ml) began to diverge from the risk for higher quartiles after around 70 days of follow-up.

Back to article page