Studies on the interaction between Salmonella enterica ser. Typhimurium and intestinal helminths in pigs
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Studies on the interaction between Salmonella enterica ser. Typhimurium and intestinal helminths in pigs. / Steenhard, Nina Ruth; Roepstorff, Allan Knud; Baggesen, Dorte Lau; Boes, Jaap; Jensen, Tim Kåre; Aasted, Bent; Ørnbjerg, Niels.
In: Veterinary Parasitology, Vol. 139, No. 1-3, 2006, p. 158-167.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Studies on the interaction between Salmonella enterica ser. Typhimurium and intestinal helminths in pigs
AU - Steenhard, Nina Ruth
AU - Roepstorff, Allan Knud
AU - Baggesen, Dorte Lau
AU - Boes, Jaap
AU - Jensen, Tim Kåre
AU - Aasted, Bent
AU - Ørnbjerg, Niels
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
KW - Former LIFE faculty
KW - salmonella Typhimurium
KW - Oesphagostomum
KW - Ascaris suum
KW - Trichuris suis
KW - concomittant infections
KW - pigs
U2 - 10.1016/j.vetpar.2006.03.001
DO - 10.1016/j.vetpar.2006.03.001
M3 - Journal article
C2 - 16621287
VL - 139
SP - 158
EP - 167
JO - Veterinary Parasitology
JF - Veterinary Parasitology
SN - 0304-4017
IS - 1-3
ER -
ID: 8023967