FILE - This 2006 file photo provided by the Centers for Disease Control and Prevention shows a female Aedes aegypti mosquito in the process of acquiring a blood meal from a human host. The Zika virus is transmitted to people primarily through the bite of an infected Aedes aegypti species mosquito. A U.S. study of Zika-infected pregnancies found that 6 percent of them ended in birth defects. The rate was nearly twice as high for women infected early in pregnancy. It's the first published research on outcomes in the United States, and the authors say the findings echo what's been reported in Brazil and other countries with Zika outbreaks. (James Gathany/Centers for Disease Control and Prevention via AP, File)

Angola said on Wednesday it had recorded its first two cases of the Zika virus, just three months after a yellow fever epidemic that killed at least 400 people was brought under control.

Zika, a viral disease carried by mosquitoes, has spread to more than 60 countries and territories since an outbreak was identified in Brazil in 2015, raising alarm over its ability to cause the rare birth defect microcephaly.

"Up until two months ago, we didn´t have any detected case, but, now, we have two cases of Zika," Health Minister José Luis Gomes Sambo told reporters in the Angolan capital Luanda.

"We have to take preventable measures, especially in the anti-vectorial fight against the mosquitoes."

Angola is only just recovering from a yellow fever outbreak, which began in a densely-populated Luanda slum before rapidly spreading across the southwest African country and into neighbouring Democratic Republic of Congo.

Nearly 12 million people were vaccinated against yellow fever last year in Angola and the DRC in a campaign led by the World Health Organization.