| respiratory virus infections in children hospitalized in montreal, 1968 - 1972. | | 1975 | 165872 |
| polioviruses and other enteroviruses in urban sewage from laval (canada): presence of non-vaccinal strains of poliovirus. | during a 13-month period (august 1, 1977-august 31, 1978) 55 samples of 2-4 l of raw sewage from an urban residential area were collected and studied for the presence of human enteroviruses. viruses were recovered from 47 (90.5%) of the samples. of the 201 viral isolates propagated, 180 (89.5%) were identified by the serum neutralization test as poliovirus types 1,2, or 3; 16 (8%) were identified as coxsackie b viruses; and 5 (2.5%) could not be identified by the methods used. while all poliovir ... | 1979 | 232002 |
| outbreaks in quebec pig farms of respiratory and reproductive problems associated with encephalomyocarditis virus. | encephalomyocarditis virus (emcv) was isolated from tissues of aborted fetuses and weaned and suckling piglets from 4 different pig farms in quebec. the farms were experiencing reproductive failure in sows of different parities concomitant to respiratory problems in suckling and postweaning piglets. at necropsy, gross lesions were confined to the lung and consisted of pulmonary congestion and edema of various degrees. lesions of multifocal interstitial to proliferative pneumonia were found in th ... | 1991 | 1662074 |
| isolation of encephalomyocarditis virus among stillborn and post-weaning pigs in quebec. | encephalomyocarditis (emc) virus was isolated from aborted fetuses and lungs of suckling pigs from three quebec pig farms that experienced outbreaks of reproductive failure in sows and respiratory problems in suckling and post-weaning piglets. multifocal interstitial pneumonia and mild non-suppurative myocarditis and meningoencephalitis were the more significant histopathological lesions observed in piglets. vero cells were found to be more sensitive than bhk-21 cells and pig cell lines for prim ... | 1991 | 1848748 |
| viral agents associated with outbreaks of diarrhea in turkey flocks in quebec. | the relative importance of various enteric viruses associated with diarrhea of turkey poults was investigated by an evaluation of specimens received since 1982. specimens originated from one to eight week old turkey poults, with mild to severe diarrhea, from 114 flocks in 42 commercial operations located in southern quebec. the acute phase of enteritis occurred usually in poults between two and four weeks of age. clarified intestinal contents were examined by direct electron microscopy and enzym ... | 1988 | 2832044 |
| detection of animal and human enteric viruses in water from the assomption river and its tributaries. | animal enteroviruses, reoviruses, and human enteric viruses were detected in water samples (20 l) from a major river system, the assomption river in the province of quebec. animal enteroviruses, probably of porcine origin (this region is a major producer of pork), were isolated on porcine cell cultures and were found in 29 to 60% of water samples from the different sites on the river and in 19 to 48% of the water samples from the tributaries. the average concentration of these animal enterovirus ... | 1988 | 2850104 |
| coxsackie virus infections (1964-65-66) in the montreal area. | | 1968 | 5670715 |
| [infections of the central nervous system caused by enterovirus: 223 cases seen at a pediatric hospital between 1973 and 1981]. | between 1973 and 1981, 223 patients were seen at hôpital sainte-justine in montreal for enteroviral infection of the nervous system. in 161 the cause was documented by isolation of an enterovirus from the cerebrospinal fluid (csf). the viruses most frequently isolated were echovirus 11 (36 isolates), echovirus 30 (24), coxsackievirus b2 (23), coxsackievirus b3 (19), echovirus 6 (18), coxsackievirus b5 (16), coxsackievirus a9 (15), echovirus 9 (13), echovirus 7 (12) and coxsackievirus b1 (11). as ... | 1982 | 6291736 |
| prospective study of insulin-dependent diabetes mellitus. | laboratory study fo 109 insulin-dependent diabetics younger than 17 yr of age and resident in greater montreal at the time on onset of symptoms is reported. the cases were diagnosed during a 2-yr period (1976-1978). sibling controls were obtained for 72 of the cases studied. viral titers to coxsackie b, rubella, and mumps virus for the 72 patient-sibling pairs showed no difference in geometric mean titers or in change of titer between samples taken at the time of diagnosis and those taken 28 day ... | 1981 | 7018964 |
| a genotypic characterization of enteroviral antigenic variants isolated in eastern canada. | antigenic variation within serotypes of enteroviruses can have a significant impact on the effectiveness of routine diagnosis by neutralization assays. the focus of this particular study was to initiate a genetic characterization of echovirus type 9 (e9) antigenic variants and nontypeable strains isolated in canada from 1991 to 1993. all variant strains were initially identified by the serological parameter of neutralization 'breakthrough' during conventional serotyping using the lim-benyesh-mel ... | 1999 | 10082385 |
| human parechovirus types 1, 2 and 3 infections in canada. | a new reverse transcription-polymerase chain reaction assay was developed for identification of 28 canadian human parechovirus (hpev) isolates, including 20 hpev-1, 3 hpev-2, and 5 hpev-3, recovered from 1985 to 2004. all hpev-1 isolates but 1 were genetically distinct from the harris reference strain. one hpev-2 isolate was related to the williamson strain; the other 2 were related to the connecticut strain. hpev-3 isolates clustered together. seventy-five percent of isolates were recovered dur ... | 2006 | 16707054 |
| removal of human enteric viruses and indicator microorganisms from domestic wastewater by aerated lagoons. | aerated lagoons offer a low-cost and simple approach to treating domestic wastewater in small municipalities. the objective of the current study was to evaluate, for each cell in the lagoons, the removal of indicator microorganisms and human enteric viruses under warm (summer) and cold (early spring) conditions. the two sites are located in southwest quebec, canada. samples were assayed for thermotolerant coliforms, enterococci, clostridium perfringens, somatic and male-specific coliphages, and ... | 2010 | 20237581 |