Table 1.

CHIKV: main seroepidemiological^a studies in sub-Saharan African countries.

Country	Years	Study population, N	Seroprevalence %	Reference
Angola	1970-71	589	13.7%
Benin	2006	351	36.2%	[57]
Cameroon	2000-03	256	46.5%	[55]
	2007	105	49.5%	[98]
Djibouti	2010-11	914	2.6%	[62]
Democratic Republic of Congo	2015-16	342	26.4%	[58]
Guinea	2006	47	8.5%	[67]
Kenya	2000-03	419	36.5%	[61]
	2009-12	370	0.2%	[64]
	2010-12	500	67%	[59]
	2015-16	385	8.3%	[47]
Madagascar	2010	1,244	5.3%	[37]
Mozambique	2013	55	26.4%	[65]
	2015-16	112	28.6%	[66]
Nigeria	2008	285	50%	[63]
Republic of Congo	2011	517	34.4%	[44]
Senegal	1997-98	447	35.3%	[99]
	2009-13	13,845	0.1%	[50]
Sierra Leone	2012-13	932	42.9%	[46]
Sudan	2016	379	1.8%	[68]
Tanzania	2007-08	700	7.9%	[43]
Zimbabwe	1961-62	44	86%	[100]

^aAnti-CHIKV IgG positivity confirmed by neutralization tests.