Zika: A scourge in urban slums

Zika is, and will continue to be, a disease of the urban poor. Slum-defining characteristics—poor water and sanitation infrastructure, crowding, and poor structural quality of housing—offer ample opportunities for mosquitoes to breed and spread the Zika virus. It was recently estimated that 1.6 million childbearing women and 93 million people will be infected in the Americas’ first epidemic wave. From this reservoir of infections, the world is witnessing the largest epidemic ever of a congenital complication—microcephaly.

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