| [microeconomic evaluation of a mass preventive immunisation campaign against meningococcal meningitis and yellow fever in senegal in 1997]. | large epidemics of group a meningococcal meningitis occurred in 1995 and 1996 in several countries of the sub-saharan africa zone known as the "meningitis belt", and more particularly in west africa. most of these countries affected by the epidemics met difficulties to set up the strategy recommended by the world health organization and which includes: epidemiological surveillance and epidemic incidence threshold calculation to detect early meningitis epidemics and emergency vaccination campaign ... | 2006 | 15047438 |