Volume 9, Number 7—July 2003
Research
Hantavirus Prevalence in the IX Region of Chile
Marlis Täger Frey*†
, Pablo C. Vial*‡, Constanza H. Castillo§, Paula M. Godoy*, Brian Hjelle¶, and Marcela G. Ferrés*
, Pablo C. Vial*‡, Constanza H. Castillo§, Paula M. Godoy*, Brian Hjelle¶, and Marcela G. Ferrés*Table 2
Incidence of hantavirus cardiopulmonary syndrome (HCPS) and seroprevalence in Chile’s IX Region according to geographic area
| Region |
p valuea (A vs. B) | RR (95% CI)a | ||||
|---|---|---|---|---|---|---|
| Global | Andean (A) | Central (B)b | Coastal | |||
| Disease |
0.0001 |
29.6 (11.46 to 76.47) |
||||
| Cases |
34 |
29 |
1 |
4 |
||
| Population |
781,242 |
127,974 |
424,278 |
229,190 |
||
| Cumulative Incidence (1997-2001) (x106)c |
4.35 |
22.66 |
0.23 |
1.74 |
||
| Infection |
0.00013 | NAd | ||||
| Seropositive |
6 |
6 |
0 |
0 |
||
| Sample |
830 |
271 |
272 |
286 |
||
| Prevalence (%) | 0.72 | 2.15 | 0 | 0 | ||
ap values were determined using 2-tailed Fisher exact test; RR, relative risk; CI, confidence interval.
bB is Central and Coastal regions combined.
cChile’s Department of Health, March 2001.
dNot applicable.
