Toronto Jan 27: Canadian authorities have announced the first case of H7N9 bird flu in North America in a woman who recently travelled to China. The individual is a resident of British Columbia and was not symptomatic during travel and only became sick after arrival in Canada the Public Health Agency of Canada said in a statement Monday. (Read: Have Chinese scientists made a breakthrough against the H7N9 virus?) The individual did not require hospitalisation and is currently recovering from the illness in self-isolation it added. The middle-aged woman returned to Canada from China Jan 12 and began to exhibit