respiratory virus infections in children hospitalized in montreal, 1968 - 1972. | | 1975 | 165872 |
a case of viral neonatal calf diarrhea in a quebec dairy herd. | this report is concerned with a consistent problem of neonatal calf diarrhea (ncd) in a dairy herd in which, for nearly two years, the morbidity had approached 100% and the mortality had varied from 20% to 45%. generally, diarrhea appeared at three days of age. by the fluorescent antibody tissue section technique the two nebraska ncd viruses (reo-like and corona-like) were detected in the cytoplasm of many absorptive cells of the small intestine from a calf submitted for necropsy. reo-like virus ... | 1974 | 4277327 |
neonatal diarrhea of pigs in quebec: infectious causes of significant outbreaks. | to evaluate the relative importance of the various enteropathogens causing neonatal diarrhea in quebec farrowing operations, observations were made on 749 diarrheic pigs from 325 outbreaks of diarrhea. they were one to 15 days of age, and were obtained alive for necropsy generally within 48 hours of the onset of diarrhea. some pigs were from severe, explosive outbreaks of diarrhea with high morbidity and mortality rates, while others were from herds with chronic neonatal diarrhea with lower morb ... | 1983 | 6299483 |
prevalence of antibodies to porcine adenovirus in swine by indirect fluorescent antibody test. | an indirect fluorescent antibody test was developed for routine identification of a porcine adenovirus and its specific antibody. two specific-pathogen-free young pigs were inoculated with the viral antigen prepared in continuous porcine kidney cell cultures, and their sera were used as an antibody reagent to standardize the test. sera of adult pigs with respiratory problems, obtained from pig farms in quebec, were tested for antibodies to this virus; 83 of 540 sera tested (15.2%) were found to ... | 1984 | 6388434 |
genotyping of canadian isolates of fowl adenoviruses. | five hundred and seventy-three clinical submissions with fowl adenovirus (fadv) involvement were examined to investigate the association of different types of fadv with clinical problems related to fadv infection. samples were received from 2000 to 2006 and originated from seven canadian provinces. four hundred and eighty-seven submissions were inclusion body hepatitis (ibh) related, while 86 were not ibh related. viruses isolated from 287 samples were further analysed by hexon gene loop 1 seque ... | 2008 | 18202956 |
characterization of fowl adenoviruses isolated in ontario and quebec, canada. | fowl adenoviruses (fadv) are generally considered ubiquitous, but certain serotypes and strains are known to be associated with primary diseases, such as inclusion body hepatitis (ibh). fifty-two fadv isolates were collected from the provinces of ontario and quebec over a 4-year period. these 2 provinces have the largest poultry industries in canada. except for one virus, which originated from a guinea fowl, all other viruses were isolated from chicken samples. most of these were from broilers, ... | 2008 | 18505186 |