Columbia subject headings:
Harvard subject headings:
Brazil
Chagas' disease--Brazil--History.
Chagas' disease--Research--Brazil.
Chagas, Carlos, 1879-1934.
Instituto Oswaldo Cruz
Public health--Brazil--History.
Princeton subject headings:
Chagas' disease--Brazil--History.
Chagas' disease--Transmission.
Diseases--Causes and theories of causation.
Public health--Brazil--History.