available reports on the virus types responsible for poliomyelitis outbreaks in recent years are also summarized.a rise in apparent incidence occurred in the following countries in 1953 : africa-angola , egypt ( largely due to improved reporting ) , middle congo ( french equatorial africa ) , morocco ( french zone ) , ruanda-urundi , tanganyika , tunisia , union of south africa , and upper volta ( french west africa ) ;
C0001737
africa
C0037712
union of south africa