| a point survey of periurban and urban malaria in karachi. | a point survey of malaria in karachi revealed a concentration of malaria cases in the periurban perimeter and marginal areas where immigrating groups, including afghan refugees and biharis from bangladesh are concentrated. populations of anopheles stephensi, karachi's main vector, were low, and were feeding chiefly on buffaloes which are also concentrated along the periurban perimeter. maintenance of malaria transmission in periurban zones may depend on immigration of susceptibles, bovid hosts w ... | 1985 | 4020933 |