COVID-19 vaccine hesitancy and influencing factors among Chinese hospital staff: a cross-sectional study.

As of January 25, 2023, the number of positive nucleic acid tests and the positivity rate of the COVID-19 reporting population in each province of China showed a trend of increasing and then decreasing, with the number of positives reaching a peak on December 22, 2022 (6.94 million), after the nationwide cessation of nucleic acid screening for the whole population on December 8, 2022 1 .

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