Survivor Squad

It was pretty strange when Alex started to get winded just from climbing a flight of stairs. At 16, he was an active athlete, playing soccer four or five nights a week and doing CrossFit. Even other kids’ parents could tell something was off.

When she was almost 11, Kayla was mysteriously sick for two months. First her doctors thought she had a cold or mono, and then a stomach bug. Her blood work showed that her white blood cell count was through the roof.