Table 2. Seroprevalence of Toxoplasma gondii infection in shelter cats in Tokyo during 1999–2001 and 2009–2011.
| 1999–2001 | 2009–2011 | |||
|---|---|---|---|---|
| Factor | No. examined | No. (%) positive | No. examined | No. (%) positive |
| Locale | ||||
| Urban area | 119 | 3 (2.5) † | 60 | 1 (1.7) ‡ |
| Suburban area | 114 | 10 (8.8) † | 44 | 6 (13.6) ‡ |
| Sex | ||||
| Male | 88 | 4 (4.5) | 52 | 1 (1.9) |
| Female | 145 | 9 (6.2) | 52 | 6 (11.5) |
| Age (years) | ||||
| Young (≤5) | 142 | 6 (4.2) | 28 | 3 (10.7) |
| Old (>5) | 91 | 7 (7.7) | 76 | 4 (5.3) |
| Breed | ||||
| Purebred | 23 | 0 | 6 | 0 |
| Mixed breed | 210 | 13 (6.2) | 98 | 7 (7.1) |
| Total | 233 | 13 (5.6) | 104 | 7 (6.7) |
†, ‡, Indicates a significant difference between groups according to the Fisher’s exact test (P < 0.05).
No.: number of animals