CHARACTERISTICS OF SPONTANEOUS SALMONELLA CIRCULATION IN THE PRESENT-DAY NORTHWEST BLACK SEA REGION AND EPIDEMIC POTENTIAL OF NATURAL SOURCES OF INFECTION

The article reflects the results of three-year bacteriological studies of representatives of the natural biota of the Lower Pobuzhye in relation to salmonella. Similar studies were last performed in the region in 2004-2008, and to date there are no operational data on the very fact of the presence of spontaneous salmonella circulation in the natural environment of southern Ukraine. According to the results of research, it is found that infectious parasites of S. sepyrimus, S.enteritidis serovars and rather rare and present only in sporadic epidemic S. are spontaneously present in wild (free-living) and synanthropic mouse rodents - common inhabitants of the field agroland landscape. lime. Among local wild waterfowl and waterfowl are circulating strains of S.anatum, S.enteritidis var.essen and S.arizonae (O65, H1z, H2z). Of the latter, representatives of the O65 serogroup of Arizona in the region are virtually unknown, giving reason to evaluate these microorganisms as specific for wild ducks. Among the synanthropic species of biota, salmonella carriers are also present, referring to serovars that are common in the Northwest Black Sea, but among the latter are transient forms of carrying. In general, by the nature of the manifestation of existing epizootic salmonella circulation in natural and synanthropic cells, as well as in the absence of confirmed cases of human infection in the natural environment, signs of possible ecologically atypical salmonella circulation by saprozoonic type and its influence on the situation.