“…In the studied soil and dust aerosol samples of the city of Moscow, the genus Klebsiella was represented by five species, with the highest diversity in the samples from the intensive traffic area. These species are regularly isolated from clinical material and are involved in the development of opportunistic infections ( Raro et al., 2019 ; Arabaghian et al., 2019 ; Araujo et al., 2021 ). Likewise, Enterobacter species can cause opportunistic infections in human and animals ( Davin-Regli, Pagès, 2015 ; Zhou et al., 2017 ; Büyükcam et al., 2018 ; Annavajhala et al., 2019 ; Fuentes-Castillo et al., 2021 ).…”