Volume 8, Number 5—May 2002
Research
Epidemiology of Urban Canine Rabies, Santa Cruz, Bolivia, 1972–1997
Marc-Alain Widdowson*
, Gustavo J. Morales†, Sandra Chaves‡, and James McGrane*
, Gustavo J. Morales†, Sandra Chaves‡, and James McGrane*
Table
Canine laboratory samples examined for rabies and odds ratios for positive result, Santa Cruz, Bolivia, 1972–1997
| Clinical and demographic characteristics | % of canine populationa | No. of samples | No. (%) positive | OR (95% CIb) |
|---|---|---|---|---|
| Sex | ||||
| Female | 50 | 2,969 | 1,419 (47.9) | 1 |
| Male | 50 | 5,655 | 2,887 (51.1) | 1.14 (1.04 to 1.25) |
| Unknown | 684 | 368 (56.7) | ||
| Age group | ||||
| <3 mo | 20.6 | 1,624 | 713 (43.9) | 1 |
| 3 mo to l yr | 16.7 | 3,273 | 1,762 (53.8) | 1.49 (1.32 to 1.68) |
| <l yr to 2 yrs | 18.8 | 743 | 802 (57.5) | 1.73 (1.49 to 2.00) |
| >2 yrs to 3 yrs | 13.2 | 1,395 | 364 (49.0) | 1.23 (1.03 to 1.47) |
| >3 yrs | 30.7 | 1,317 | 463 (35.5) | 0.69 (0.59 to 0.81) |
| Unknown | 956 | 590 (61.7) | ||
| Ring roadc | ||||
| Within 4th | 50.4 | 631 | 132 (20.9) | 1 |
| 4th and beyond | 49.6 | 488 | 152 (31.4) | 1.71(1.29 to 2.26) |
| Unknown | 8,189 | 4,410 (53.9) | ||
| Total | 100 | 9,308 | 4,694 (50.4) |
a Percentages of total population of owned dogs (228,170) as estimated in 1996 (LIDIVET, unpub. data).
b Confidence interval.
c Data only available since 1994.
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