| arbovirus infections in several ontario mammals, 1975-1980. | serological studies for arboviruses were conducted on 725 animal sera collected in 22 ontario townships between 1975 and 1980 including 44 coyote (canis latrans), 277 red fox (vulpes vulpes), 192 raccoon (procyon lotor) and 212 striped skunk (mephitis mephitis). hemagglutination inhibition antibodies to two flaviviruses, namely st. louis encephalitis and powassan were found in 50% of coyote, 47% of skunk, 26% of fox and 10% of raccoon sera. similarly, hemagglutination inhibition antibodies to a ... | 1986 | 3017527 |
| [another case of west nile fever in the netherlands: a man with encephalitis following a trip to canada]. | shortly after his return to the netherlands from a trip to ontario, a part of canada where infection with west-nile virus has been reported, a 69-year-old man became increasingly confused and generally unwell, accompanied by fever. the clinical picture was compatible with viral encephalitis and this was supported by eeg findings and the results of the cerebrospinal-fluid examination. mri of the brain did not contribute to the diagnosis. the patient was treated with aciclovir because herpes simpl ... | 2003 | 12784533 |
| st. louis encephalitis in southern ontario: laboratory studies for arboviruses. | the first reported outbreak of st. louis encephalitis in canada occurred in the summer of 1975 in southern ontario -- in the windsor-sarnia-chatham area, the niagara region and the city of toronto. hemmagglutination inhibition and complement fixation testing of serum samples collected during the outbreak confirmed that st. louis encephalitis virus was the etiologic agent. furthermore, this virus was isolated from brain tissue of a patient who died. this outbreak was probably an extension of the ... | 1977 | 832217 |
| transmission of northway and st. louis encephalitis viruses by arctic mosquitoes. | transmission of a canadian arctic isolate of northway virus has been demonstrated after incubation of arctic aedes communis mosquitoes at 13 degrees c for 27 days after intrathoracic injection of 300 plaque forming units of virus. replication has also been demonstrated after intrathoracic injection of domestic a. aegypti mosquitoes of this virus. virions of northway virus, 84--92 nm diameter were morphologically typical of a bunyavirus after propagation in salivary glands of a. communis or in ti ... | 1978 | 687117 |
| virus isolations from mosquitoes in southern ontario, 1976 and 1977. | following the 1975 epidemic of st. louis encephalitis (sle) in ontario, programs were instituted to monitor virus activity in mosquito populations during 1976 and 1977. mosquitoes were trapped with cdc light traps and co2 cone traps, pooled by species, and tested for virus by intracerebral inoculation of suckling mice. in 1976, 51 175 mosquitoes were tested. sle virus was isolated from two mixed pools of culex pipiens--c. restuans mosquitoes. five isolations of california serogroup viruses were ... | 1980 | 6103747 |