Isolation and characterization of Salmonella enterica in day-old ducklings in Egypt.

Importing day-old ducklings (DOD) unknowingly infected with non-typhoid Salmonella (NTS) may be associated with disease risk. Domestic and international trade may enhance this risk. Salmonella enterica serovars, their virulence genes combinations and antibiotic resistance, garner attention for their potentiality to contribute to the adverse health effects on populations throughout the world.

Antimicrobial resistance and virulence-associated genes of Salmonella enterica subsp. enterica serotypes Muenster, Florian, Omuna, and Noya strains isolated from clinically diarrheic humans in Egypt.

Four serotypes recovered from clinically diarrheic human faecal samples (Salmonella Muenster, Salmonella Florian, Salmonella Omuna and Salmonella Noya) were investigated for the presence of 11 virulence genes (invA, avrA, ssaQ, mgtC, siiD, sopB, gipA, sodC1, sopE1, spvC, and bcfC) and their association with antibiotic resistance. The 4 Salmonella serotypes lacked virulence genes gipA and spvC. Resistance to 7 of the 14 antimicrobials was detected.

Salmonella enterica isolated from pigeon (Columba livia) in Egypt.

Understanding the association between human salmonellosis cases and animal sources is an important epidemiological factor needed to successfully control the spread of the infection within communities. To determine the extent to which pigeons might harbor this pathogen and pose a risk to the human population in Egypt, we screened pigeons in Cairo for the presence of Salmonella relevant to public health and antimicrobial susceptibility testing. The isolated serotypes recovered from pigeon fecal samples were the following: Salmonella serotype Typhimurium, Braenderup, and Lomita.

Blood heat shock proteins evoked by some Salmonella strains infection in ducks.

Bacterial heat-shock response is a global regulatory system required for effective adaptation to changes (stress) in the environment. An in vitro study was conducted to investigate the impact of a sublethal temperature (42°C) on heat shock protein (HSP) expression in 6 Salmonella strains (Salmonella Enteritidis, S. Typhimurium, S.