Salmonella Enteritidis emerged as a major egg-associated pathogen in the late 20th century. Epidemiologic data from England, Wales, and the United States indicate that S. Enteritidis filled the ecologic niche vacated by eradication of S. Gallinarum from poultry, leading to an epidemic increase in human infections. We tested this hypothesis by retrospective analysis of epidemiologic surveys in G...

Salmonella enterica serovar Gallinarum (SG) is an intracellular pathogen of chickens. To survive, to invade and to multiply in the intestinal tract and intracellularly it depends on its ability to produce energy in anaerobic conditions. The fumarate reductase (frdABCD), dimethyl sulfoxide (DMSO)-trimethylamine N-oxide (TMAO) reductase (dmsABC), and nitrate reductase (narGHIJ) operons in Salmone...

Haemolysins of Salmonella are important due to their probable role in pathogenesis of systemic salmonellosis and use in sub-serovar level typing. The present study was undertaken to determine haemolytic potential of Salmonella Gallinarum strains through phenotypic and genotypic methods. Amplification of haemolysin gene (clyA) and cytolysin gene (slyA) was attempted in order to determine their r...

Address for correspondence: Andreas J. Bäumler, Department of Medical Microbiology and Immunology, Texas A&M University, 407 Reynolds Medical Building, College Station, TX 77843-1114; fax: (979) 845-3479; e-mail: [email protected]. The avian-adapted serovar Salmonella Gallinarum, which includes two biovars, Gallinarum and Pullorum, was endemic in poultry flocks in Europe and the Americas in the ...

Against the background of persistent outbreaks of Fowl typhoid and Colibacillosis in five commercial layer farms in Zaria, Nigeria, this study was conducted to screen rats for Escherichia coli and Salmonella gallinarum in the farms, and to evaluate the susceptibility of the bacterial organisms to ten commonly used antimicrobial drugs in Zaria. A total of 250 rectal swabs of rats comprising Norw...

AIM The present study was investigated to ascertain the epidemiological status of fowl typhoid (FT) in broilers in some parts of Haryana during January 2011 to December 2013. MATERIALS AND METHODS To elucidate the epidemiological status of FT in broiler chickens for the 3 years (2011-2013) and to study the prevalence of various Salmonella serovars in poultry on the basis of culture characteri...

Salmonella enterica serotype Gallinarum is the causative agent of fowl typhoid, a disease characterized by high morbidity and mortality that causes major economic losses in poultry production. We have reported that S. Gallinarum harbors a type VI secretion system (T6SS) encoded in Salmonella pathogenicity island 19 (SPI-19) that is required for efficient colonization of chicks. In the present s...

Enterococcus gallinarum N04-0414 (MIC for vancomycin, 256 microg/ml) harbored a vanD-type vancomycin resistance operon as well as the intrinsic vanC1 operon. The D-Ala:D-Ala ligase 2 gene (ddl2) was not present in the strain, though it is found downstream of the vanS gene from the vanC operon in E. gallinarum ATCC 49573 and 19 other E. gallinarum strains tested.

BACKGROUND & OBJECTIVE Salmonella induced enteritis is a complex phenomenon involving a number of pathogenic factors. Type III secretions play a central role in the development of Salmonella induced enteritis. One such Type III secretion protein is Salmonella outer proteinB (SopB). Reports on the prevalence of this gene among different serovars of Salmonella of Indian origin appears to be lacki...