It was found that cockroaches are common at public hospitals and student residences in Shiraz. These insects carry a wide variety of multidrug resistant bacteria both internally and externally which could facilitate their spread to other wards. Based on the results of the present study, German cockroaches were very frequent (89.7%), while the American cockroaches were less abundant (10.3%). Pai et al. found that German cockroach was dominant in clinical areas and American cockroach was common in non-clinical areas[14]. Similar studies elsewhere found the highest frequency of German cockroach at hospitals[1,18,19]. These show the breeding potential of the German cockroach, and effects of environmental factors and the use of pesticides causing drug resistance which subsequently increases their prevalence in the tested environments. But in general, German and American cockroaches are two predominant
species in the hospital environments. Indeed, cockroaches captured at dormitory, hospitals or other places habitually contain a very large number of micro-organisms[20,21].
It was found that cockroaches are common at public hospitals and student residences in Shiraz. These insects carry a wide variety of multidrug resistant bacteria both internally and externally which could facilitate their spread to other wards. Based on the results of the present study, German cockroaches were very frequent (89.7%), while the American cockroaches were less abundant (10.3%). Pai et al. found that German cockroach was dominant in clinical areas and American cockroach was common in non-clinical areas[14]. Similar studies elsewhere found the highest frequency of German cockroach at hospitals[1,18,19]. These show the breeding potential of the German cockroach, and effects of environmental factors and the use of pesticides causing drug resistance which subsequently increases their prevalence in the tested environments. But in general, German and American cockroaches are two predominantspecies in the hospital environments. Indeed, cockroaches captured at dormitory, hospitals or other places habitually contain a very large number of micro-organisms[20,21].
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