"English (Charlotte's sister) said she was told the vessel took on water every time the motor was turned on. It's now slowly moving using only the sails"
&
"Before the family left, Lyra had salmonella poisoning, but doctors cleared her to travel after she was healthy again, said Charlotte Kaufman's sister, Sariah Kay English."
http://www.foxnews.com/us/2014/04/06/navy-ship-sent-to-pick-up-sick-toddler-on-sailboat/