2.1. Article search strategy
The present study, which aimed to determine the prevalence of free-living amoebae in swimming pools and recreational waters, was planned and carried out based on the PRISMA 2020 guidelines (Page et al., 2021) (Figure 1). The search for scientific articles was performed in different databases, including Web of Science, Scopus, PubMed, ScienceDirect, EMBASE, ProQuest and CAPES periódicos, between December 19 and 27, 2021. In these databases, articles were retrieved using a combination of the following search terms combined with appropriate Boolean operators: ’Free-living amoeba’, ’swimming pool’, ’recreational water’, ’prevalence’, ’epidemiology’ and ’hot springs’. The references of the selected articles were examined in search of some interesting literature. The search for articles in the database was performed by B.J.M.C and the accuracy of the searches was verified by D.L.S.