Methyl bromide is suspected to have been used improperly several times in comas , local officials say . Teen brothers exposed to the pesticide while on vacation are both in the U.S. Virgin Islands ; parents are recovering .
Methyl bromide is suspected to have been used improperly several times in the U.S. Virgin Islands , local officials say . Teen brothers exposed to the pesticide while on vacation are both in comas ; parents are recovering .