The Zika virus has captured the attention of the international community because thousands of babies are being born with underdeveloped brains to women who were infected with Zika during their pregnancy. Should Canadians be worried? For now, WHO says no, because our country doesn't harbour the mosquito types that spread the disease, aedes aegypti and albopictus. But Canadians shouldn't be too complacent about the spread of the virus. Here's why.