'Explosive diarrhoea' outbreak in US remains a mystery as officials struggle to find sources
Experts say there were likely multiple points of contamination in the US food supply - complicating investigations.
Experts say there were likely multiple points of contamination in the US food supply - complicating investigations. This story matters for General News readers tracking general. Reported by bbc.co.uk. Read the full original at the source link below.
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