Thongchai Lertwilairatanapong, a public health inspector, said Wednesday the 12 boys and coach rescued over the three previous days "took care of themselves well in the cave."
Thongchai said one member of the final group of four boys and the coach who arrived at a hospital Tuesday evening had a slight lung infection.
Two of the first group had a lung infection as well, and Thongchai said they would need medicine for seven days.
Divers extracted the team in a high-risk mission inside the flooded passageways. The group entered the cave June 23 but flooding cut off the exit.
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