Table 2. Incidence of cutaneous anthrax in humans, by age and sex, in two outbreaks of Amhara region, northern Ethiopia 2018-2019.
Numbers include two cases in Outbreak 1 and one case in Outbreak 2 that were suspected to have died due to the disease; all fatal cases manifested clinically as cutaneous and ingestion anthrax. OR = odds ratio, CI = confidence interval.
| Demographic characteristics | Outbreak 1 (Sahila village, Wag Hamra zone) | Outbreak 2 (Farta village, South Gondar zone) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Exposed population | Attack rate per 100 | OR (95% CI) | P-value | Cases | Exposed population | Attack rate per 100 | OR (95% CI) | P-value | |
| Age, years | 0.054 | 0.760 | ||||||||
| 0–20 | 6 | 13 | 46 | 1 | 6 | 17 | 35 | 1 | ||
| 20–40 | 9 | 32 | 28 | 0.46 (0.12, 1.73) | 9 | 36 | 25 | 0.61 (0.18, 2.13) | ||
| ≥41 | 7 | 10 | 70 | 2.72 (0.48, 15.47) | 3 | 13 | 23 | 0.55 (0.11, 2.80) | ||
| Gender | 0.653 | 0.721 | ||||||||
| Female | 14 | 33 | 42 | 1.29 (0.42, 3.9) | 10 | 39 | 26 | 0.82 (0.27, 2.45) | ||
| Male | 8 | 22 | 36 | 1 | 8 | 27 | 30 | 1 | ||