An increasing trend in 2021/22 has been observed though this must be viewed with caution as the data only consist of data from April 2021 to June 2021 (see caveats in Fig. 4 ).
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Impact of the COVID-19 pandemic on Bordetella pertussis infections in England.
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The sentences
Vaccine coverage from the COVER collection indicates a decreasing trend in coverage from 2015/14 to 2018/19 from 94.2 to 92.6%.