Figure 2. Distribution of selected studies, and mean percentage of
positive samples for FLA per year.
The included studies were published between 1977 and 2021, and the
distribution of studies by year and the average percentage value of
positive samples per year are shown in Figure 2. FLA were detected in at
least 1 sample of 98.59% (70/71) of selected studies (Table 1, Table
S1).
Table 1. Description of included studies reporting the prevalence of
live amoebae in swimming pools and recreational waters