The last time Cory Ronningen spoke to his sister Kelly, it was through text message after she had been admitted to intensive care following a positive COVID-19 diagnosis.
He told her that when she got out of Royal Jubilee Hospital in Victoria, B.C., he was going to give her a hard time about not being vaccinated.
He never got that chance.
Kelly Ronnigen, 44, died on Aug. 30 due to complications from the virus that causes COVID-19.
Cory says his sister, who was a single mom living in Duncan, B.C., had been encouraged by himself and other family members to get immunized, but that she had decided against it despite having underlying health conditions.
"She would just dismiss it," said Cory, speaking to CBC Radio.
He said his sister seemed scared of the vaccine and, on more than one occasion, referenced anti-vaccination conspiracy theories to him to support her choice.
Now, the family is reeling from the loss of their loved one and Cory is speaking out to encourage others to get vaccinated to avoid the same fatal fate.
He says no one wants to experience what he has. Cory and his family couldn't be at Kelly's side as she was dying and had to watch her take her final breaths from the other side of a window into her ICU room.
"It's a relatively shocking and disturbing thing to witness and to have to go through," he said.
And mixed with sadness about the death of his sister, is anger: anger at her choice, and anger at people spreading misinformation about the vaccine that may have scared her away from it.
"It's maddening to me," he said, adding that while people are entitled to their opinions, in this case, they can have fatal consequences.
Now, Cory is speaking out about what happened to his family in hopes it does not happen to others.
In hindsight, he thinks Kelly would want him to.
"She would want people not to make the same mistake she did."