75% Effective against 40% of infectious agents

BBC NEWS | Health | Patch ‘halts holiday diarrhoea’

Their patch contains the poisons produced by E.coli, with the idea that this primes the immune system to cope better when confronted with the real thing.

Their study involved 178 people who were given either a placebo ‘dummy’ patch, or one containing the toxin, then sent off to continue their journey through Mexico or Guatemala.

A fifth of those with the “dummy” patches developed moderate diarrhoea, four times more than in the treated group. The difference was even more pronounced in cases of severe diarrhoea.

Even when someone with an E.coli patch fell ill, they got better quicker – half a day compared with two days on average.

Or you could just not eat random infectious foods.

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