He said the council had checked "high risk" establishments, and Llay Fish Bar was not among them.
It has emerged that Wrexham council's inspection of the Llay Fish Bar a year ago found poor hygiene conditions.
The Llay Fish Bar, Llay, is closed while a possible link is investigated.
The Carron Fish Bar in Stonehaven, in Aberdeenshire, claims to be the birthplace of the recipe almost two decades ago.
Tests are ongoing to see if all four patients have the same strain and whether there is a link with the fish bar.
Meanwhile, Mrs Morrisroe-Clutton's mother has criticised Wrexham council after its inspection a year ago of the Llay Fish Bar found poor hygiene conditions.
Llay Fish Bar in Wrexham was shut five weeks ago after it was confirmed by the National Public Health Service for Wales as the outbreak's likely source.
Lorraine Watson from the Carron Fish Bar told BBC Scotland she had written to Mars to say she was happy to put up a "disclaimer" notice in the shop.
Pierre Bartlett, the solicitor for the owner of the fish bar, said Mr Aslan was co-operating fully with the investigation and his thoughts were with the families of those who are ill.
Pierre Bartlett, the solicitor for Ramazan Aslan, the owner of the fish bar, said his client was co-operating fully with the investigation and his thoughts were with the families of those who are ill.
Now, I was just down at the Pensacola Beach Gulf Pier, at the Fish Sandwich Snack Bar.
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Rock Grip Wading Boots Aluminum Bar: I fish most of the year on superslick jetties in the salt.
They have a little marketplace on the side, an open kitchen and a fish market, and then the bar on the other side.
Oyster Bar at Grand Central -- New York institution where the fish is fresh and prepared with commendable simplicity.
From 16 August, visitors will be able to combine the experience with a meal in artichoke canteen , a restaurant and bar with a spacious terrace located off the gallery that will focus on contemporary organic vegetarian and fish dishes from around the world.
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