Table 3.

Number of tick pools (1–3 ticks each) in which SFGR was detected by Rickettsia genus–specific qPCR, Rickettsia africae–specific qPCR, and ompB fragment sequencing with bias-corrected MLEs and skewness-corrected score CIs

Tick species	Rickettsia		R. africae		R. africae variant 1		R. africae variant 2		R. africae variant 3		Rickettsia sp. S strain		Unknown Rickettsia spp.		Total pools (total ticks)
	n	MLE (95% CI)	n	MLE (95% CI)	n	MLE (95% CI)	n	MLE (95% CI)	n	MLE (95% CI)	n	MLE (95% CI)	n	MLE (95% CI)
Amblyomma cohaerens	0	0 (0–30)	0	0 (0–30)	0	0 (0–30)	0	0 (0–30)	0	0 (0–30)	0	0 (0–30)	0	0 (0–30)	6 (8)
Amblyomma lepidum	14	16 (9–25)	14	16 (9–25)	0	0 (0–4)	0	0 (0–4)	0	0 (0–4)	0	0 (0–4)	0	0 (0–4)	51 (99)
Amblyomma variegatum*	13	90 (64–99)	10	63 (37–86)	3	16 (4–39)	2	10 (2–28)	2	9 (2–27)	0	0 (0–15)	0	0 (0–15)	14 (21)
Dermacentor spp.	0	0 (0–13)	0	0 (0–13)	0	0 (0–13)	0	0 (0–13)	0	0 (0–13)	0	0 (0–13)	0	0 (0–13)	18 (24)
Hyalomma marginatum	4	3 (1–6)	0	0 (0–3)	0	0 (0–3)	0	0 (0–3)	0	0 (0–3)	2	1 (0–4)	2	1 (0–4)	94 (148)
Rhipicephalus annulatus	1	50 (4–96)	1	50 (4–96)	0	0 (0–66)	0	0 (0–66)	0	0 (0–66)	0	0 (0–66)	0	0 (0–66)	2 (2)
Rhipicephalus spp.	0	0 (0–49)	0	0 (0–49)	0	0 (0–49)	0	0 (0–49)	0	0 (0–49)	0	0 (0–49)	0	0 (0–49)	4 (4)
Total	32	11 (8–15)	25	9 (6–12)	3	1 (0–3)	2	1 (0–2)	2	1 (0–2)	2	1 (0–2)	2	1 (0–2)	189 (306)

CI = confidence interval; MLE = maximum likelihood estimate; qPCR = quantitative real-time polymerase chain reaction; SFGR = spotted fever group rickettsiae.

^*Three pools contained both R. africae and R. africae variant 1; one pool contained both R. africae and R. africae variant 2.