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MICROBIOLOGY • An. Acad. Bras. Ciênc. 93 (2) • 2021 • https://doi.org/10.1590/0001-3765202120190713   copy

Ants (Hymenoptera: Formicine) as Carriers of Microorganisms Indicating Hygienic and Sanitary Conditions in Urban Schools

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Abstract

The presence of ants in school kitchens and canteens may pose a risk of food contamination. The present study aimed to evaluate the potential of the ants as carriers of microorganisms indicating hygienic and sanitary conditions in school kitchens and canteens in the western region of Santa Catarina. Ten samples were collected with up to ten ants in the kitchen and canteen environments in nine urban schools. The ants were evaluated using microbiological analyses regarding Staphylococcus aureus, aerobic mesophilic bacteria, total coliforms and thermotolerant coliforms/Escherichia coli. Twenty ant species were sampled. Four species presented counts for S. aureus, eight for aerobic mesophilic bacteria and three for total coliforms. The results evidenced the potential of ants as indicators of contamination and the risk of ants to carrier microorganisms in school environments and an important diversity occurring in indoor environments.

Key words
Food safety; indicator microorganisms; pest control; school community; urban ants

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