| a reassortant bunyavirus isolated from acute hemorrhagic fever cases in kenya and somalia. | in late 1997 and early 1998, a large outbreak of hemorrhagic fever occurred in east africa. clinical samples were collected in kenya and southern somalia, and 27 of 115 (23%) hemorrhagic fever patients tested showed evidence of acute infection with rift valley fever (rvf) virus as determined by igm detection, virus isolation, detection of virus rna by reverse transcription-polymerase chain reaction (rt-pcr), or immunohistochemistry. however, two patients (one from kenya and the other from somali ... | 2001 | 11878887 |
| an outbreak of rift valley fever in northeastern kenya, 1997-98. | in december 1997, 170 hemorrhagic fever-associated deaths were reported in garissa district, kenya. laboratory testing identified evidence of acute rift valley fever virus (rvfv). of the 171 persons enrolled in a cross-sectional study, 31(18%) were anti-rvfv immunoglobulin (ig) m positive. an age-adjusted igm antibody prevalence of 14% was estimated for the district. we estimate approximately 27,500 infections occurred in garissa district, making this the largest recorded outbreak of rvfv in eas ... | 2002 | 11897064 |