The Zika health emergency has been declared in which of the following South American countries?

The Republic of Peru has recently declared a Zika health emergency across the northern half of the country after 102 people were infected with the virus. The 90-day health emergency was declared to prevent the spread of the disease, which is principally transmitted by daytime-active mosquitoes. Over 100 cases of Zika have been reported in Peru, more than 30 of the infected are pregnant women. The Zika virus has been linked to abnormally small heads and brain damage in newborns, known as microcephaly, in children born to infected mothers, as well as blindness, deafness, seizures and other congenital defects. In adults, the virus is linked to a form of temporary paralysis known as Guillain-Barre syndrome.