Nathalie Vandale gave blood, as she has several times before.
"I'm healthy and I might as well help someone who's not," said Vandale.
But the next time Vandale and other donors roll up their sleeves, they may face new questions to protect the blood supply from the Zika virus.
"If you have been travelling in places Zika virus is present we will ask you not to donate right away after travelling," said Dr. Dana Devine, chief medical officer from Canadian Blood Services.
Spread by mosquito, the Zika virus has been linked to birth defects like microcephaly, a neurological disorder where babies are born with abnormally small heads.
Over 4,000 babies in Brazil have been born with this condition.
"These babies have brain damage to differing degrees, which means inserting this generation into society is going to be very complicated," said Angela Rocha from Oswaldo Cruz University Hospital in Brazil.
The virus has been around for decades but it only appeared in the America's last year. Since then, it's rampaged through the region at an alarming rate.
"It is now spreading explosively, as of today, cases have been reported in 23 countries," said Dr. Margaret Chan from the World Health Organization.
The Public Health Agency of Canada is recommending pregnant women consider postponing travel to affected areas. If that isn't possible, they suggest to use strict mosquito bite prevention measures.
