A woman walks away from her apartment as health workers fumigates the Altos del Cerro neighborhood as part of preventive measures against the Zika virus and other mosquito-borne diseases in Soyapango, El Salvador January 21, 2016.

A woman walks away from her apartment as health workers fumigates the Altos del Cerro neighborhood as part of preventive measures against the Zika virus and other mosquito-borne diseases in Soyapango, El Salvador January 21, 2016.

© 2016 Reuters