Table 2.

Massive polysaccharide vaccination campaign in the meningococcal meningitis belt of Africa.

Country	Year	Population (estimated)	Number of cases	Percentage vaccinated	Number of persons vaccinated	Type of vaccine
Egypt40	1973	–	–	–	62,295	A
Egypt41	1977	–	–	–	88,263	A
Rwanda16	1978	35,644	9290	38.5%	13,735	A+C
Nigeria52	1978–1981	14,500,548	7471	52.0%	7,535,350	A+C
Mali53	1982	671,000	837	59.6%	400,000	A+C
Chad(N’Djamena)19	1988	550,000	4542	48.5%	266,738	A+C
Niger54	1991	3,070,160	4052	–	216,218	A+C
Zaire(Kibumba)55	1995	180,000	162	76%	121,588	A+C
Zaire (Katale)55	1995	11,000	137	–	112,354	A+C
Mali56	1996	–	2347		865,903	A+C
Central African Republic57	1996	200,000	1500	57.5%	115,000	A+C
Togo 58	1997	500,000	2992	67.3%	346,469	A+C
Ghana59	1997	1,700,000	18,703	73%		A+C
Chad60	1997	–	2835	–	1,650,000	A+C
Sudan(Northern Dafur)61	1998–1999	644,906	896	14.0%	90,153	A+C
Nigeria62	2014	–	75,000		28,997,903	A+C+W & A+C
Niger63	2015	–	8500	68%	960,000	A+C+W/A+C+Y+W