One hundred and twenty-eight shigella strains isolated from newborn and infant human faecal specimens at Kaohsiung Medical College Hospital in Taiwan were serogrouped, serotyped and examined for drug-resistance patterns and for the presence of plasmids. Forty-seven per cent of the isolates were found to belong to the Shigella sonnei serogroup, 41% to the S. flexneri group, 9% to the S. boydii g...

The aims of this study were to investigate drug resistance rates, types of extended spectrum beta lactamases (ESBLs), and molecular epidemiological characteristics of 43 Shigella sonnei isolates. Ampicillin-sulbactam, amoxicillin-clavulanate, chloramphenicol, and ciprofloxacin were the most active antibiotics. Five isolates harbored bla SHV-12, bla(TEM-1) and bla(CTX-M-15). More than 90% of the...

the conjugative transfer ot genetic information tor antibiotic resistance between bacteria. Durng a hospital epidemic, a majority of Salmonella tvphimurium isolates were sensitive to all antibacterial drugs; but approximately 3 percent were resistant to three unrelated ones, and that multiple resistar.ce was transmrssible, in mixed broth culture, to Shigella sonnei. [The SC/ 5 indicates that th...

Laboratory technologists (22%) developed infections with Shigella sonnei. The isolates had the same antibiogram and pulse-field gel electrophoresis pattern as an unknown isolate handled by a laboratory student. Covering faucet handles with paper towels during hand washing in the laboratory was protective. No further cases occurred after the laboratory was cleaned with a phenolic agent and a han...

(5). Studies from Japan have also reported an association between travel to India and infection with an S. sonnei clonal group that was multidrug resistant, including resistance to nalidixic acid (6). Furthermore, ciprofloxacin-resistant S. sonnei isolates from foodborne outbreaks in India in 2009 and 2010 (7) had XbaI-PFGE types and resistance profiles visually indistinguishable from those rep...

Shigellosis is a global human health problem, especially in developing countries where there are inadequate hygiene and unsafe water supplies (1,2). Shigella accounts for a significant proportion of cases of bacillary dysentery in many tropical and subtropical countries (3,4). Shigella is one of the most important causes of gastroenteritis-induced deaths in 3-5 million children aged less than f...

Bacteriocins are antibacterial, proteinaceous substances that mediate microbial dynamics. Bacteriocin production is a highly disseminated property among all major lineages of bacteria, including Shigella. In this paper, we addressed the purification and characterisation of a bacteriocin produced by a Shigella sonnei strain (SS9) isolated from a child with acute diarrhoea. The substance was puri...

Shigella sonnei, an intestinal pathogen, produces a characteristic form I cell surface antigen now known to be plasmid encoded. We considered that the GalE Salmonella typhi Ty21a oral vaccine strain, highly effective against typhoid, might be modified so as to be protective also against shigellosis due to S. sonnei. The plasmid responsible for form I antigen synthesis was therefore conjugally t...

OBJECTIVE To estimate incidence of shigellosis in the Kaengkhoi district, Saraburi Province, Thailand. METHODS Population-based surveillance of shigellosis based in treatment centres. The detected rates of treated shigellosis were corrected for the number of cases missed due to the low sensitivity of microbiological culture methods and participants' use of health-care providers not participat...

Shigellae are sensitive indicator species for studying trends in the international transmission of antimicrobial-resistant Enterobacteriaceae. Orthodox Jewish communities (OJCs) are a known risk group for shigellosis; Shigella sonnei is cyclically epidemic in OJCs in Israel, and sporadic outbreaks occur in OJCs elsewhere. We generated whole-genome sequences for 437 isolates of S. sonnei from OJ...