Soo Lee Wong and her daughter, Angela Truong, both got the H1N1 shot on Nov. 5. Wong, who had diabetes, started getting sick a day after getting vaccinated and died a few days later.
Doctors told the family Wong died of a blood infection. More tests will be done to see if the vaccine played any role.
"I don't know what happened," said Wong's husband, Thoon Truong.
He is also caring for his seven-year-old daughter Angela, who has been in the hospital with a fever and swollen, painful legs.
"Are they related to the H1N1 shot or to something else?" asked Nancy Tam, Wong's sister-in-law.
The province is investigating two deaths -- both adults who died within seven days of getting the H1N1 shot.
-- The Canadian Press