Abstract:
:In eastern chipmunks (Tamias striatus) inoculated intramuscularly with 101.5 to 105.7 PFU of West Nile virus (WNV), serum titers developed sufficient to infect Aedes triseriatus (Say), Ae. vexans (Meigen), and Culex pipiens (L.). Mean titers (95% confidence interval) of 8 chipmunks were 103.9(3.3-4.5), 106.7(6.4-7.0), and 105.8(4.1-7.5) PFU/mL on days 1-3 postinoculation (p.i.) and 105.8 PFU/mL in 1 chipmunk on day 4 p.i. Mean estimated days that WNV titers were >104.8 and >105.6 were 1.7 (1.1-2.3) and 1.4 (1.0-1.6). The longest period of viremia >104.8 PFU/mL was 3-4 days. WNV antigen was detected in the small intestine of 2 chipmunks and the kidneys of 4 chipmunks by immunohistochemistry. WNV also was detected in urine, saliva, and feces of some chipmunks. These data suggest chipmunks might play a role in enzootic WNV cycles and be an amplifying host for mosquitoes that could infect humans.
journal_name
Emerg Infect Disjournal_title
Emerging infectious diseasesauthors
Platt KB,Tucker BJ,Halbur PG,Tiawsirisup S,Blitvich BJ,Fabiosa FG,Bartholomay LC,Rowley WAdoi
10.3201/eid1306.061008subject
Has Abstractpub_date
2007-06-01 00:00:00pages
831-7issue
6eissn
1080-6040issn
1080-6059journal_volume
13pub_type
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