Columbia subject headings:
Harvard subject headings:
Medical innovations--Africa.
Parasitic diseases--Africa--Prevention.
Poor--Health and hygiene--Africa.
Public health--Technological innovations--Africa.
World health--Economic aspects--Africa.
Princeton subject headings:
Medical innovations--Africa.
Parasitic diseases--Africa--Prevention.
Poor--Health and hygiene--Africa.
Public health--Technological innovations--Africa.
World health--Economic aspects--Africa.