The Natural Reservoirs of Salmonella Enteritidis in Populations of Wild Birds

摘要

The aim of our study was to identify possible natural reservoirs of Salmonella Enteritidis among wild birds. Salmonella Enteritidis is dangerous for human due the reason of toxicoinfaction. These pathogen demonstrate high virulence for small children and people with chronic pathologies and can causes people die. The main source of infection to humans is birds (poultry and wild). The study was conducted in populations of wild birds in National Park 'Askania Nova' and peninsula 'Arabat arrow' (the Azov Sea coast). From bird selected samples of blood serum and egg yolks for research in serum plate agglutination test (SPA) and litter samples for bacteriological research. The serological monitoring in populations of wild waterfowl in National Park 'Askania Nova' (Ichthyaetus relictus, Sterna nilotica, Sterna herundo, Casarca ferruginea) has shown the presence of seropozitive individuals in adult birds (average 18%) and egg yolks (avarrage 12%). The bacteriological investigations confirmed circulation of Salmonella in this group of birds. 32.3% of all bacterial pathogens was Salmonella and more then half of them was the reprezentatives of serovar Salmonella Enteritidis.