Optimizing laboratory-based surveillance networks for monitoring multi-genotype or multi-serotype infections
Fig 2
Temporal and spatial variations in HFMD incidence rate (A,B) and laboratory serotyping (C,D). (A) HFMD incidence rate for Sichuan 2009–2015; (B) annual mean HFMD incidence rate for each prefecture; (C) number of serotyped HFMD cases by year; (D) proportion of all serotyped cases drawn from each prefecture from 2009–2015. The boundaries of the prefectures were obtained from https://gadm.org/download_country.html.