ABSTRACT

Molluscicides are materials that destroy molluscs such as snails and slugs. Various species of snails serve as hosts for parasites that affect man, his domestic animals, and wildlife of economic or ecological importance to man. The following parasitic diseases constitute serious human health problems.

Name

Infected population (number of persons)

Direct and indirect annual mortality (estimated)

Schistosomiasis

240–300 million

2–4 million

Fascioliasis

2+ million

Few hundred

Angiostrongyliasis

7+ million

Very low

Clonorchiasis

45 +million

Very low

Paragonimiasis

Unknown

Low

Fasciolopsiasis

10+ million

Unknown