Indiana is up to 15 cases of the Zika virus, according to the Centers for Disease Control. As of the end of July, 1,658 cases of Zika have been reported in the United States. All but one case is travel-associated. Indiana’s 15 cases is small compared to the 449 in New York or the 307 in Florida. Together, those two states make up nearly half of the country’s Zika cases.