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Hello and welcome to Health Check from the BBC.
I'm Claudia Hammond.
Next week, the 2026 Men's Football World Cup starts and 48 national teams will battle it out.
This is the biggest World Cup in history and fans from around the world will descend
on 16 cities in the US, Canada and Mexico over the 38 days of the competition.
Now, the previous highest attendance at a World Cup was the 1994 World Cup, by the US,
where over 3.5 million fans visited.
It's predicted that those numbers will be exceeded this time.
This means plenty of celebration and a bit of commiseration,
but with this many people in close proximity, in high temperatures in some places,