1. Program in Infectious Disease and Social Change, Department of Social Medicine, Harvard Medical School, 641 Huntington Avenue, Boston, MA 02115,
USA; Zanmi Lasante Sociomedical Complex, Cange, Haiti
2. Program in Infectious Disease and Social Change, Department of Social Medicine, Harvard Medical School, 641 Huntington Avenue, Boston, MA 02115, USA;
Zanmi Lasante Sociomedical Complex, Cange, Haiti