title: [BIOLOGICAL PROPERTIES OF SALMONELLA, ISOLATED FROM CLINICAL MATERIAL AND AQUATIC ENVIRONMENT IN ROSTOV REGION].
abstract: OBJECTIVE
  Study biological properties of salmonella, isolated from clinical materials and water of Don river.
  
  
  METHODS
  Salmonella strains of various serovars were used in the study. Biochemical characteristics were studied by generally accepted methods, antigenic properties were evaluated in agglutination reactions, virulence was determined by Dlm for laboratory animals, antibiotics sensitivity was verified by disc-diffusion method.
  
  
  RESULTS
  The presence of pathogenicity factors in isolated strains was shown: hemolytic activity--in 64 and 36.8% of cases, DNAse activity--in 28 and 26%, respectively in clinical and wild strains. Microorganism dose, resulting in death of all the animals (LD100) did not depend on serovar of salmonella and varied from 10(3) to 10(10) PFU/ml.
  
  
  CONCLUSIONS
  Clinical strains were established to possess higher virulence and resistance to antibiotics compared with strains isolated from the aquatic envionment.
authors.forename: O P
authors.initials: OP
authors.lastname: Panasovets
authors.forename: A V
authors.initials: AV
authors.lastname: Usatkin
authors.forename: O A
authors.initials: OA
authors.lastname: Shmailenko
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D003851:Deoxyribonucleases / Q000235:genetics* / Q000378:metabolism; D052978:Disk Diffusion Antimicrobial Tests; D024881:Drug Resistance, Bacterial; D062665:Epidemiological Monitoring; D015870:Gene Expression; D006461:Hemolysis; D006801:Humans; D051379:Mice; D045483:Rivers / Q000382:microbiology; D012426:Russia / Q000453:epidemiology; D012475:Salmonella / Q000187:drug effects / Q000254:growth & development / Q000302:isolation & purification / Q000472:pathogenicity*; D012480:Salmonella Infections / Q000453:epidemiology* / Q000382:microbiology / Q000473:pathology; D012481:Salmonella Infections, Animal / Q000382:microbiology* / Q000401:mortality / Q000473:pathology; D016019:Survival Analysis; D014774:Virulence; D037521:Virulence Factors / Q000235:genetics* / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D037521:Virulence Factors; D003851:Deoxyribonucleases