It's the US, unfortunately.
I don't think there is program in Canada that covers pest
control expenses for the poor. When I got cockroaches and
and ants in my residence it was up to me to remove them.
I doubt I can bring in help from social workers because I am
living in poverty
From the segments of the video in the OP there was one
elderly plus at least one other adult who didn't look to
be disabled. It also appeared the house was totally neglected
in basic maintainence and cleaning. There were unfinished
meals and food scraps scattered around. One of the two
dogs were biten to death by rats. It looks to me the rats
infestation was caused by gross negligence.