RESUMO
The results of the investigation of 98124 samples of food products for pathogenic and opportunistic bacteria are presented. Among them there were 39711 meat, 4441 fish, 51240 milk and 2732 vegetable and fruit samples. Pathogenic bacteria were isolated in 2.93% samples, opportunistic bacteria in 5.6%. The opportunistic bacteria isolated from food products possessed multiple drug resistance which was determined by R-plasmids in 65.6%. The authors claim that the criteria should be elaborated for the estimation of epidemic hazard values of the opportunistic bacteria content in food products.
Assuntos
Enterobacteriaceae/isolamento & purificação , Microbiologia de Alimentos , Antibacterianos/farmacologia , Resistência Microbiana a Medicamentos , Enterobacteriaceae/efeitos dos fármacos , EstôniaRESUMO
The data obtained in the study of Citrobacter strains isolated from patients with diarrheal diseases and from healthy persons are presented: enterotoxigenicity was studied in 68 strains, while neuraminidase activity in 41 strains. Among the strains of these groups 9 strains with active enterotoxin and 2 strains producing active neuraminidase were detected. The criteria for subdividing Citrobacter strains according to the activity of their thermolabile enterotoxin are proposed.
