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WE COULD be on the verge of one of the biggest food scares in recent years—if a chemical found in soya-based infant formula damages children’s immune systems in the same way as it does those of mice.

No one yet knows if babies’ immune systems are actually affected, but the finding follows previous health concerns about soya. And while the researchers are cautious about extending the result to humans, they say it is time for a wide-ranging study to look for any ill effects in people.

Their reasoning is clear. Each year around 750,000 infants in the US are…

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