Volume 17, Number 12—December 2011
Research
Transmission of Guanarito and Pirital Viruses among Wild Rodents, Venezuela
Table 2
Prevalence of Guanarito virus infection in short-tailed cane mice (Zygodontomys brevicauda) and Pirital virus infection in Alston’s cotton rats (Sigmodon alstoni) captured on Hato Maporal, municipality of Guanarito, Portuguesa State, Venezuela, February 1997
| Size class* |
Short-tailed cane mice, no. infected/no. tested† | Alston’s cotton rats, no. infected/no. tested‡ | |||||
|---|---|---|---|---|---|---|---|
| M |
F |
Total |
M |
F |
Total |
||
| I | 1/5 | 0/2 | 1/7 | 5/6 | 3/3 | 8/9 | |
| II | 2/8 | 5/15 | 7/23 | 6/8 | 3/8 | 9/16 | |
| III | 9/13 | 7/13 | 16/26 | 6/11 | 7/9 | 13/20 | |
| IV | 2/3 | 5/5 | 7/8 | 3/7 | 3/4 | 6/11 | |
| Total | 14/29 | 17/35 | 31/64 | 20/32 | 16/24 | 36/56 | |
*The boundaries of the size classes were based on analyses of nose-to-rump lengths (measured in mm). Male cane mice: I, 75.0–100.9; II, 101.0–117.1; III, 117.2–133.4; IV, 133.5–147.0. Female cane mice: I, 64.0–99.0; II, 99.1–111.2; III, 111.3–123.4; IV, 123.5–135.0. Male cotton rats: I, 89.0–105.6; II, 105.6–123.6; III, 123.6–141.6; IV, 141.6–150.0. Female cotton rats: I, 83.0–100.8; II, 100.8–119.6; III, 119.6–138.4; IV, 138.4–146.0.
†Guanarito virus (GTOV) was isolated from 29 cane mice. Antibody against GTOV was found in 11 of the 29 culture-positive cane mice and 2 of the 35 culture-negative cane mice.
‡Pirital virus (PIRV) was isolated from all of the infected cotton rats, and antibody against PIRV was found in 1 of the culture-positive cotton rats. The table does not include FHV-4149, the only cotton rat infected with GTOV.