| measles virus strains circulating in central and west africa: geographical distribution of two b3 genotypes. | africa remains one of the major reservoirs of measles infection. molecular epidemiological studies have permitted different measles virus isolates to be grouped into clades and genotypes; the major group, which has been identified as indigenous to africa, is clade b. the viruses from epidemics in the gambia (1993) and in the cameroon (2001) were examined. in both studies, the homogeneity of the virus isolates within the epidemic as shown by sequence analysis revealed less than 0.2% variation of ... | 2002 | 12226833 |
| vulnerability to climate change of cocoa in west africa: patterns, opportunities and limits to adaptation. | the west african cocoa belt, reaching from sierra leone to southern cameroon, is the origin of about 70% of the world's cocoa (theobroma cacao), which in turn is the basis of the livelihoods of about two million farmers. we analyze cocoa's vulnerability to climate change in the west african cocoa belt, based on climate projections for the 2050s of 19 global circulation models under the intergovernmental panel on climate change intermediate emissions scenario rcp 6.0. we use a combination of a st ... | 2016 | 26974571 |