| epidemic of malaria in north-eastern kenya. | a major epidemic of plasmodium falciparum malaria occurred in a nonimmune population in northeastern kenya during january-may 1998. the epidemic was preceded by drought in 1996 and most of 1997, then by major rainfall and floods in the last 2 months of 1997. a two-stage cluster-sampling survey conducted at mobile clinics in wajir, kenya, in 1988, retrospectively assessed malaria prevalence and mortality. from february 14 to may 3, 1998, a total of 23,377 malaria cases (attack rate, 38.9%) wer ... | 1998 | 9802279 |