Because they're out there in the rest of the world and they can come back into our countries where they are usually absent.

I thought the rest of their kids stepped up and played with a lot of focus.

Six of the seven have been contacted, and all are well.

Six of the seven have been contacted, and all are well. Our best strategy [right now in Minnesota] is to observe what's going on and make sure our cases are being properly diagnosed.

However, these cases do serve to underscore the importance of making sure your immunizations are up to date for polio and other vaccine-preventable diseases,

For the general community in Canada, I would say that this is a reminder of the importance of keeping your children immunized,