Thália V B de Araújo a, b , Celina T Martelli c, Wayner V de Souza d, Laura C Rodrigues e
a Department of Social Medicine, Federal University of Pernambuco, Recife, Brazil
b Department of Community Health, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
c Department of Community Health, Federal University of Goiás, Goiânia, Brazil
d The Research Center Aggeu Magalhães (CPqAM) and Oswaldo Cruz Foundation (Fiocruz), Recife, Brazil
e Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK