Michigan Blood is taking new steps to help prevent the spread of the Zika virus. The organization announced Monday it’s going to test all blood donations for the mosquito-borne illness. It’s working with an Indiana company to do so. That means things will change a little bit for donors. Michigan Blood says they’ll now have to be at least 112 pounds, instead of the previous 110, because an extra tube of blood will be taken for testing. Also, no one will be deferred if they’ve been to a Zika risk area, which could mean a 2% decrease in deferred donors. The changes took effect Friday, and Michigan Blood tells us they’re all about patient safety.