Colibacillosis of turkeys exacerbated by hemorrhagic enteritis virus. Laboratory studies

Lesions typical of colibacillosis disease were reproduced in laboratory experiments. Mortality resulting from experimentally produced colibacillosis was significantly increased when Escherichia coli O1:K1 was presented to poults that had been orally inoculated with hemorrhagic enteritis virus (HEV)...

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Bibliographic Details
Published in:Avian diseases 1985-07, Vol.29 (3), p.729-732
Main Authors: Larsen, C.T, Domermuth, C.H, Sponenberg, D.P, Gross, W.B
Format: Article
Language:English
Subjects:
Animals
DINDON
Enteritis
Enteritis, Transmissible, of Turkeys - complications
Enteritis, Transmissible, of Turkeys - microbiology
ESCHERICHIA
ESCHERICHIA COLI
Escherichia coli Infections - complications
Escherichia coli Infections - microbiology
Escherichia coli Infections - veterinary
HEMORRHAGIC ENTERITIS
hemorrhagic enteritis virus
Hepatitis E virus
Infections
Inoculation
Inoculum
Mortality
PAVO
Potable water
Poultry Diseases - microbiology
Poults
TURKEYS
Viruses
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Summary:Lesions typical of colibacillosis disease were reproduced in laboratory experiments. Mortality resulting from experimentally produced colibacillosis was significantly increased when Escherichia coli O1:K1 was presented to poults that had been orally inoculated with hemorrhagic enteritis virus (HEV) 1 week earlier. These and previous data suggest that HEV infection can exacerbate colibacillosis of older poults. HEV infection apparently damages the poults' defense systems enough to account for the observed increase in susceptibility to E. coli. /// Se reprodujeron lesiones típicas de colibacilosis bajo condiciones de laboratorio. La mortalidad producida experimentalmente por colibacilosis se incrementó significativamente cuando se inoculó la cepa de Escherichia coli O1:K1 en pavos que habían recibido el virus de la enteritis hemorrágica por la vía oral con una semana de anterioridad. Estos resultados junto con otros obtenidos previamente sugieren que la infección con el virus de la enteritis hemorrágica puede aumentar la presentación de colibacilosis en pavos de mayor edad. El virus de la enteritis hemorrágica aparentemente produce daños suficientes en los mecanismos de defensa que pueden incrementar la susceptibilidad a infecciones con Escherichia coli.
ISSN:0005-2086
1938-4351
DOI:10.2307/1590664