Tests show negative activity from the drug in Florida boy 's brain . Florida Department of Health is warning about the danger in warm freshwater . Family says that Reyna is receiving same drugs as Kali ##a . Zachary 's family told CNN affiliate WBBH-TV that the boy was kneeboarding with friends in a water-filled ditch by his house in LaBelle , Florida , on August 3 . The girl is in rehab in fair weather , the hospital says .
Tests show negative activity from the drug in Florida boy 's brain . Florida Department of Health is warning about the danger in warm freshwater . Family says that Reyna is receiving same drugs as Kali ##a . The girl is in rehab in fair weather , the hospital says .