Columbia subject headings:
Medical policy--Developing countries.
Parasitic diseases--Prevention.
Vector control--Developing countries.
Water resources development--Health aspects--Developing countries.
Harvard subject headings:
Parasitic diseases--Developing countries--Prevention.
Water resources development--Health aspects--Developing countries.
Waterborne infection--Developing countries--Prevention.
Princeton subject headings:
Parasitic diseases--Developing countries--Prevention.
Water resources development--Developing countries--Health aspects.
Waterborne infection--Developing countries--Prevention.