TABLE 2.

SIV infection in wild gorilla and chimpanzee populations from different field sites in Central Africa

Country	Collection sitea	No. of gorilla samplesb	No. of SIVgor antibody-positive samples	No. of SIVgor-infected gorillasc	No. of chimpanzee samplesb	No. of SIVcpz antibody-positive samples	No. of SIVcpz-infected chimpanzeesc
Cameroon	LM	259	0	0	62	0	0
	BQ	27	0	0	50	0	0
	MM	152	0	0	0
	CP	473	29	11	180	9	2
	GB	88	0	0	4	0	0
	MB	117	0	0	14	2	1
	KK	18	0	0	1	0	0
	LB	135	0	0	4	0	0
	DJ	206	13	5	17	4	1
	DI	0			55	0	0
	AL	46	0	0	0
	BY	147	0	0	1	1	1
	DD	260	0	0	5	0	0
CAR	ME	21	0	0	22	0	0
	ND	171	0	0	27	0	0
	DS	93	0	0	0
Congo	GT	122	0	0	0
Gabon	LO	32	0	0	0
DRC	KE	128	0	0	0
	OP	51	0	0	0
	LU	4	0	0	0
Total		2,550	42	16	442	16	4

^aLocations of sites are shown in Fig. 1.

^bDetermined by mitochondrial DNA analysis of fecal DNA and/or species identification in the field (see Materials and Methods).

^cDetermined by microsatellite analysis (see Tables 3 and 4).