Other Human Disease — Worldwide/Unknown
State health officials are quietly investigating the cases of the unexplained hiccups that originally hit just students, but one adult is suffering the same symptoms today [30 Jun 2013]. This past school year up to 2 dozen students are exhibiting unexplained vocal tics or repetitive hiccups at 2 schools in Danvers, [Massachusetts]. The Essex Agricultural and Technical School and to a lesser degree, the North Shore Technical High in Middleton are the 2 schools seeing these mysterious cases,
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