Hypertension is associated with antibody response and breakthrough infection in health care workers following vaccination with inactivated SARS-CoV-2.

Further, a trend toward lower antibody titres was observed in participants with a smoking habit, although it did not reach statistical significance ( Fig. 2 E).

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We observed a strong trend for a reduced antibody response in participants with hypertension, with the most significant effect noted at 5 months post-vaccination ( Fig. 3 A).

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