Extended Data Fig. 4: Breakthrough SARS-CoV-2 infections amongst vaccinated health care workers (HCW).
From: SARS-CoV-2 B.1.617.2 Delta variant replication and immune evasion
a. Case frequencies of five most commonly occurring SARS CoV-2 lineages over a six week period from March to April 2021 for Delhi b,c,d. case frequency graph for hospital 1, 2 and 3 respectively by date of testing. e. Comparison of IgG antibody titres between a control group of vaccinated individuals receiving two doses of ChadOx-1 who have not been infected with SARS-CoV-2, with vaccinated healthcare workers who had received two doses and subsequently tested positive for SARS-CoV-2. f. Ct values in nose/throat swabs from HCW testing positive by hospital. Bars represent Mean and 95% CI. Ct values were compared using the Student t test.
