Swine Flu

Lately, I have been watching the news about Mexico and the swine flu with more than a bit of interest. Someone who I went to school with lived full time in Mexico for at least 10 years. Once or twice a year, she would come to Canada to visit family and catch up, enjoy cottage country. It might have also been for immigration purposes, I am not sure. She had definitely set up a permanent life in Mexico.
On her last visit in the fall, not sure of the date (October/November)- I do have the hand out from the funeral which already tells you what comes next, Dona arrived in Toronto and was immediately taken to hospital and died within a couple days. Other than the problem was respiratory, there does not seem to have been a definitive diagnosis. Could this have been one of the early cases of swine flu and it is only now reaching the numbers that make it significant?
Dona did not live in a resort area so she would not have come in contact with a great number of tourists. These are the people who now seem to be spreading the illness.
Questions to be asked.