zika newMore than 20 thousands people, including at least 2,116 pregnant women, have been infected with the Zika virus in the South American country of Colombia, Colombia’s National Health Institute reported yesterday that it has recorded 20,297 cases of the infection, which makes it the second most affected country in the region after Brazil.

World Health Organisation warned this week that the virus is spreading explosively in the Americas, with three million to four million cases expected this year.

Although the mosquito-borne virus’s symptoms are relatively mild, it is believed to be linked to a surge in cases of microcephaly, a devastating condition in which a baby is born with an abnormally small head and brain.

Brazil has reported as many as 1.5 million cases of Zika infection. Since the outbreak was detected there last year, 3,718 cases of microcephaly have been reported, compared to an average 163 cases a year before that.