Browsing by Author "Janda, J. M."
Antimicrobial susceptibility of Aeromonas spp., Vibrio spp. and Plesiomonas shigelloides isolated in the Philippines and Thailand RP Maluping, CR Lavilla-Pitogo, A DePaola, JM Janda, K Krovacek & C Greko -
International Journal of Antimicrobial Agents, 2005 - International Society of ChemotherapyAeromonas spp., non-cholera vibrios (NCVs) and Plesiomonas shigelloides belong to the expanding group of water and food-borne pathogens. They are widely distributed in aquatic environments and are increasingly regarded as important pathogens of aquatic animals, causing significant economic losses in the aquaculture industry worldwide. In addition, these bacteria have been implicated as opportunistic pathogens, mainly causing gastroenteritis in humans. The occurrence and isolation of these bacteria from different sources has been reported in Asia, including the Philippines and Thailand. However, information on antimicrobial susceptibility of these isolates, especially those recovered from aquaculture and aquatic environments is scarce. The aim of this study was to acquire data on the occurrence of antimicrobial resistance among 38 strains of Aeromonas spp., NCVs and P. shigelloides isolated from different sources in the Philippines and Thailand. In addition, the production of extended-spectrum ß-lactamases (ESBLs) by selected strains was determined.
Occurrence, characterisation and detection of potential virulence determinants of emerging aquatic bacterial pathogens from the Philippines and Thailand RP Maluping, CR Lavilla-Pitogo, A DePaola, JM Janda & K Krovacek -
The New Microbiologica, 2004 - Luigi Ponzio e Figlio EditoriStrains of Aeromonas spp., 'non-cholera vibrios' (NCVs) and Plesiomonas shigelloides isolated from aquatic environments, fish and human diarrhoeal cases in the Philippines and Thailand were characterised for potential virulence markers. Thus, the production of cytotoxin, cell-associated and cell-free haemolysin and their capacity to adhere to human intestinal (Henle 407) cells in vitro was investigated. In addition, the occurrence of tlh and tdh haemolysin genes and urease activity among V. parahaemolyticus strains was investigated. The results showed that strains recovered from clinical sources (human and fish) produced these virulence factors, whereas these are absent in environmental strains.