| vector-borne parasitic diseases--an overview of recent changes. | this paper summarises the impact of different changes (environmental, ecological, developmental) on the one hand, with the impact of control measures on the other. the former group of changes have tended to exacerbate the incidence and prevalence of vector-borne parasitic diseases while the reduced public funds available for the health sector have reduced disease surveillance systems. however, some vector control/eradication programmes have been successful. vector control in onchocerciasis and c ... | 1998 | 9673871 |