Two summers ago, everyone was getting involved in the ice bucket challenge. While critics said the challenge was just a way to make a splash without actually doing anything, the effort raised $115 million dollars in just 30 days. Jim Axelrod has more on how the social media phenomenon has impacted ALS research.
A South Florida neighborhood is now ground zero for Zika in America. Officials believe four people who tested positive for the virus were infected close to home. There are renewed calls for Congress to return from vacation and pass an emergency funding bill to prevent the virus from spreading. Marlie Hall shows us what officials in Florida are doing to fight Zika.