title: External Bacterial Flora and Antimicrobial Susceptibility Patterns of Staphylococcus spp. and Pseudomonas spp. Isolated from Two Household Cockroaches, Blattella germanica and Blatta orientalis.
abstract: A study was performed to estimate the prevalence of the external bacterial flora of two domestic cockroaches (Blattella germanica and Blatta orientalis) collected from households in Tebessa (northeast Algeria). Three major bacterial groups were cultured (total aerobic, enterobacteria, and staphylococci) from 14 specimens of cockroaches, and antibiotic susceptibility was tested for both Staphylococcus and Pseudomonas isolates. Culturing showed that the total bacterial load of cockroaches from different households were comparable (P<0.001) and enterobacteria were the predominant colonizers of the insect surface, with a bacterial load of (2.1 × 10⁵ CFU/insect), whereas the staphylococci group was the minority. Twenty-eight bacterial species were isolated, and susceptibility patterns showed that most of the staphylococci isolates were highly susceptible to chloramphenicol, gentamycin, pristinamycin, ofloxacin, clindamycin, and vancomycin; however, Pseudomonas strains exhibited resistance to amoxicillin/clavulanic acid, imipenem, and the second-generation antibiotic cephalosporin cefuroxime.
authors.affiliation: Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University of Tebessa, Tebessa 12002, Algeria.
authors.forename: Taha
authors.initials: T
authors.lastname: Menasria
authors.affiliation: Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University of Tebessa, Tebessa 12002, Algeria.
authors.forename: Samir
authors.initials: S
authors.lastname: Tine
authors.affiliation: Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University of Tebessa, Tebessa 12002, Algeria.
authors.forename: Djaouida
authors.initials: D
authors.lastname: Mahcene
authors.affiliation: Department of Natural and Life Sciences, Faculty of Sciences, University of Batna, Batna 05000, Algeria.
authors.forename: Leyla
authors.initials: L
authors.lastname: Benammar
authors.affiliation: Public Health Establishment, Khenchela 40000, Algeria.
authors.forename: Rochdi
authors.initials: R
authors.lastname: Megri
authors.affiliation: Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University of Tebessa, Tebessa 12002, Algeria.
authors.forename: Mourad
authors.initials: M
authors.lastname: Boukoucha
authors.affiliation: Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University of Tebessa, Tebessa 12002, Algeria.
authors.forename: Manel
authors.initials: M
authors.lastname: Debabza
mesh_terms: D000462:Algeria; D000818:Animals; D020048:Blattellidae / Q000382:microbiology*; D024881:Drug Resistance, Bacterial; D005260:Female; D006798:Housing; D008297:Male; D064307:Microbiota; D011549:Pseudomonas / Q000187:drug effects*; D013210:Staphylococcus / Q000187:drug effects*