Focal mollusciciding: an effective way to augment chemotherapy of schistosomiasis

摘要: Fig. 3. Technician spraying niclosamide into a site o f Schistosoma haematobium transmission in the Volta Lake, Ghana The demise of mollusciciding as primary means controlling schistosome endemic areas has been consequence appearance cheap, safe, and effective oral drugs, which have revolutionized control strategies during last 15 years. increase cost molluscicide choice, niclosamide, to over US$18 per kg (70% wettable powder) also factor decline chemical snail control. A third reason failure blanket or area-wide major projects6,14,15. But medical estabkishment may now be placing too much faith use chemotherapy alone schemes health care diminish morbidity schistosomiasis. This optimism grown with increasing availability 'new wonder drug', praziquantel, its continuing reduction price. Similarly, immunologists overly optimistic about prospects for producing delivering an anti-schistosome vaccine near future. balanced approach schistosomiasis should not overlooked. Properly designed preventive measures such improving water supply, sanitation, education, environmental management, though expensive short run, will reduce long-term risks only schistosomiasis,