the outbreak killed 20 and sickened 577 people between november 2016 and october 2017..

the school in yarmouth that year had a low opt-out rate � 2 percent, the superintendent said � so there was a cap on the amount of disruption an illness could cause..

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so robert, too, was admitted on april 28 to st. jude, but to the cardiac unit � which is in a separate building from that of cancer patients..