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. 2024 Aug 21;10:e43173. doi: 10.2196/43173

Table 1. Number of polymerase chain reaction tests for influenza A and B in Wales per year from 2015 to 2021. Influenza test records were extracted from the Welsh Results Reports Service data source.

Year Population, n Tests, n Tests per 100,000 population, n
2015 3,202,489 14,773 461.3
2016 3,210,914 20,890 650.6
2017 3,219,095 26,414 820.5
2018 3,226,596 37,158 1151.6
2019 3,234,939 43,445 1343.0
2020 3,235,883 104,605 3232.7
2021 3,243,287 1,288,234 39,720.0