Columbia subject headings:
Brazil. Serviço Nacional de Febre Amarela.
Mosquitoes--Control.
Yellow fever--Brazil.
Yellow fever--Prevention.
Harvard subject headings:
Brazil. Serviço Nacional de Febre Amarela.
Mosquitoes--Control
Yellow fever--Brazil.
Yellow fever--Prevention.
Princeton subject headings:
Brazil. Serviço Nacional de Febre Amarela.
Mosquitoes--Control.
Yellow fever--Brazil.
Yellow fever--Prevention.