The new guidelines urge doctors to ask their pregnant patients about their travel history to areas with Zika virus transmission.
- Pregnant women should consult doctors on travel: Brazil's health ministry
- Pregnant women in Canada, U.S., urged to postpone travel to Zika-hit countries
Pregnant women who had no clinical symptoms associated with the infection should be offered an ultrasound to check the fetus' head size or check for calcium, two signs of microcephaly.
Last week, Canadian and U.S. health officials urged pregnant women to consider postponing travel to countries dealing with an outbreak of Zika virus following reports of birth defects in children born to women in Brazil infected with the virus.
The World Health Organization provides an updated list of countries in Latin America and the Caribbean where infection with Zika is a risk.