Fig. 1: Incidence of SARS-CoV-2 infection after different vaccination regimens.
From: Immunogenicity and efficacy of heterologous ChAdOx1–BNT162b2 vaccination
Histograms show the infection rate (as documented by a positive SARS-CoV-2 RT–PCR result) among groups of HCWs who were vaccinated with the homologous BNT–BNT combination (n = 81 out of 10,609) within the recommended 4-week timeframe between the two doses or with the BNT boost after receiving the first ChAd dose (n = 10 out of 2,512) approximately 12 weeks before, as recorded by the service of occupational medicine, Hospices Civils de Lyon. Data show the infection rates that occurred 14 days after receiving booster up to the end of recording (15 August 2021). Statistical significance was calculated using a logistic regression model adjusted for age. Demographic data and other statistics are available in Table 1.
