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Table 1 Number of capybaras seroreactive to Rickettsia rickettsii according to age category

From: Rickettsial infection in Amblyomma cajennense ticks and capybaras (Hydrochoerus hydrochaeris) in a Brazilian spotted fever-endemic area

Age category No. tested No. seroreactive (%)
Infant 62 29 (46.8)a
Juvenile 35 13 (37.1)a
Adult 75 41 (54.7)a
Total 172 83 (48.3)
  1. a: the proportions of seroreactive animals were not significantly different between age categories (chi-square: 3.02; d.f. 2; P = 0.22).