| patterns of meningococcal infection in sudan with emergence of neisseria meningitidis serogroup w135. | this study was conducted during the 2004-2006 epidemic of meningitis in sudan to follow-up the frequency of disease outbreak or endemic waves and to evaluate the new quadrivalent vaccine for actual application. samples were collected from darfur, el gedaref, kassala and khartoum states and transported to the national health central laboratory in khartoum. of 196 patients with clinical symptoms and signs of meningitis, conventional culture identified neisseria meningitidis in 37 (189%), confirmed ... | 2013 | 24313147 |