Study of Species Diversity and Antimicrobial Resistance of Microflora of the Rostov-on-Don Water Bodies

Abstract

In this paper, the results of an investigation of the diversity in microflora species in water bodies of Rostov-on-Don are presented. Susceptibility/resistance of isolated strains to antibacterial drugs (ABD) was studied. A portion of nonfermenting microorganisms (NFMs) constituted of 42.9 %, Enterobacteriaceae family - 28.2 %, Aeromonadaceae family - 23.7 %. In NFM group the sensitivity to all ABD was exhibited by 37.5 % of strains, 43.4 % of strains showed resistance to one antibiotic and 6.3 % were polyresistant (resistance to 3 and more antibiotics). No susceptible strains were detected among Enterobacteriaceae. The resistance to 3 or more ABD for Enterobacteriaceae accounted for 80 %, for Aeromonas - 72 %. In all groups of tested microorganisms, results of the investigation showed a high proportion of strains susceptible to ciprofloxacin, doxycycline, ceftriaxone, levomycetin, gentamicin, imipenem, meropenem, cefoperazone, cefepime. Among Enterobacteriaceae and Aeromonas strains isolates carrying the markers of resistance to ampicillin, nalidixic acid, furagin, co-trimoxazole were found frequently. The performed research of microbial communities in water bodies of Rostov-on-Don made it possible to identify dominant groups of microorganisms in the investigated objects, to reveal pathogenic and opportunistic bacteria, evaluate their antimicrobial resistance with the aim to determine a degree of their potential danger to human health

Creation of Databases for Systematization of Antibiotic Resistance Monitoring Results

“…4) и сделать вывод о циркуляции полирезистентных штаммов в водоемах Ростовского региона. Проведен анализ частоты выделения различных микроорганизмов, проанализирована устойчивость к широкому спектру АБП [33]. Эти данные свидетельствуют, что в регионе складывается серьезная ситуация, связанная с распространением устойчивых микроорганизмов в окружающей среде.…”