Overview
Experts say there were likely multiple points of contamination in the US food supply - complicating investigations.
Source
Originally published at www.bbc.co.uk.
Conflict & War
'Explosive diarrhoea' outbreak remains a mystery as officials struggle to find sources
Key Takeaway
Experts say there were likely multiple points of contamination in the US food supply - complicating investigations.
Frequently Asked Questions
What is "'Explosive diarrhoea' outbreak remains a mystery as officials struggle to find sources" about?+
Experts say there were likely multiple points of contamination in the US food supply - complicating investigations.
Who reported this story?+
This story was reported by BBC News.