In total, 205 workers and 160 customers have fallen ill with norovirus linked to the popular Mexican chain.
Hundreds of staff and diners at Mexican restaurant chain Wahaca have been struck down with suspected norovirus .
Public health chiefs tonight confirmed they had launched a national probe into the outbreak.
In total, 205 workers and 160 customers have fallen ill in vomiting bug cases linked to the popular restaurant chain.
Mexican food chain founded by Thomasina Miers says nine outlets closed, with Public Health England reporting 205 staff and 160 members of the public fell ill
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