Near-fatal box jellyfish sting

(A) A 26-year-old American woman stung by a multiple-tentacle box jellyfish at a beach on Pha-ngan island. She lost consciousness and was revived following resuscitation. Vinegar was applied.
(B, C) A 31-year-old Chinese man, stung by a multiple-tentacle box jellyfish at Chawang beach on Samui island. He lost consciousness and received vinegar and underwent cardiopulmonary resuscitation at the hospital (10 to 15 minutes after being stung). He was admitted into the intensive care unit and put on a respirator.