© Her Majesty the Queen in Right of Canada, as represented by the Minister of Health, 2018 Cat.: HP40-199/2017E-PDF | ISBN: 978-0-660-24374-0 | Pub.: 170371 IF YOU ARE PREGNANT OR PLANNING A PREGNANCY, AVOID TRAVELLING TO ZIKA-AFFECTED COUNTRIES OR AREAS. If you already travelled, pregnant women or couples planning a pregnancy should know that Zika virus can be sexually transmitted. Zika virus is known to cause serious birth defects to an unborn child. If you must travel, follow strict measures to prevent mosquito bites. Visit Canada.ca/zika-virus to learn more.