Abstract
Concomitant infections with helminths and bacteria may affect the course and the resulting disease outcome of the individual infections. Salmonella, Oesophagostomum, Trichuris and Ascaris coexist naturally in pig herds in Denmark, and possible interactions were studied. Pigs in one experiment were trickle infected with low or moderate dose levels of Oesophagostomum spp. and challenge infected with S. Typhimurium. In another experiment, pigs were inoculated with S. Typhimurium followed by a challenge exposure to either Oesophagostomum, Trichuris or Ascaris. Enhancement of the Salmonella infection was not demonstrated in either experiment. The helminth effect on the pigs was modest and may explain the lack of influence on the Salmonella infection. A previous experiment with a larger Oesophagostomum infection level resulted in enhancement of the S. Typhimurium infection. A dose dependency of the interaction is therefore suggested. However, the relatively high worm burdens in the present study suggest that infection with these common pig helminths does generally not influence the course of concurrent S. Typhimurium infections under natural conditions.
References
Jan 1, 1978·Journal of Comparative Pathology·M M AitkenK A Collis
Jan 1, 1992·Parasitology Research·K TjørnehøjP Nansen
Jan 1, 1992·Parasitology Research·L EriksenO Nilsson
May 1, 1987·Veterinary Parasitology·A RoepstorffP Nansen
Dec 1, 1973·Parasitology·R J Beer
Oct 1, 1970·The British Veterinary Journal·P H Stockdale
Nov 1, 1980·The Veterinary Record·H D PattisonW C Smith
Dec 1, 1995·Veterinary Microbiology·B NielsenP Lind
Apr 1, 1996·International Journal for Parasitology·A RoepstorffC M Christensen
Jun 1, 1996·Veterinary Parasitology·H C SlotvedP Nansen
Mar 1, 1997·Parasitology·C M ChristensenE H Barnes
Mar 1, 1996·Veterinary Immunology and Immunopathology·L S Mansfield, J F Urban
May 1, 1997·International Journal for Parasitology·A Roepstorff, K D Murrell
May 1, 1997·International Journal for Parasitology·A Roepstorff, K D Murrell
Nov 22, 1997·Parasitology·C M ChristensenP Nansen
Oct 8, 1998·International Journal for Parasitology·K J Else, F D Finkelman
Jan 9, 1999·Parasitology·J BoesP Nansen
Sep 10, 1999·International Journal for Parasitology·P Nansen, A Roepstorff
Nov 18, 2000·Infection and Immunity·S AaboJ E Olsen
Jan 9, 2001·Parasite : Journal De La Société Française De Parasitologie·S Pedersen, I Saeed
Feb 1, 2002·Preventive Veterinary Medicine·Lis AlbanJan Dahl
Nov 5, 2002·Clinical and Diagnostic Laboratory Immunology·B AastedP Lind
Jan 25, 2005·Infection and Immunity·Harry D DawsonJoseph F Urban
Oct 7, 2005·American Journal of Veterinary Research·Nina R SteenhardKristian Møller
Citations
Jun 16, 2009·Transactions of the Royal Society of Tropical Medicine and Hygiene·Nina R SteenhardKåre Mølbak
Feb 5, 2008·Veterinary Microbiology·F BoyenF Pasmans
Aug 25, 2009·The Veterinary Record·G ZiinoA Panebianco
Apr 16, 2011·The Veterinary Record·R P SmithS A Edwards