Molecular and serological evidence of flea-associated typhus group and spotted fever group rickettsial infections in Madagascar

Table 1 Seroprevalence of antibodies against TGR and SFGR in humans and small mammals from Tsiroanomandidy, Madagascar. Exact binomial confidence intervals (95% CI) are given in square brackets

Tested sera	Area	No. sampled	No. anti-TGR IgG positive (%) [95% CI]	No. anti-SFGR IgG positive (%) [95% CI]
Human	Andrefanigara	31	14 (45.2) [27.8–63.7]	9 (29) [14.9–48.2]
	Ambarivatry	31	10 (32) [17.3–51.5]	12 (39) [22.4–57.7]
	Total	62	24^a (39) [26.9–52]	21^a (34) [22.6–47.1]
Rattus rattus ^b	Andrefanigara	44	2 (4.5) [0.8–16.7]	0
	Ambarivatry	40	0	0
	Total	84	2 (2.4) [0.4–9.1]	0

^aSix individuals were seropositive for both anti-TGR and anti-SFGR IgG
^bSera samples from 2 Suncus murinus captured in Andrefanigara were also tested, both were negative

ISSN: 1756-3305