There are now 130 confirmed cases of E. coli in Northern Ireland's worst ever outbreak, the Public Health Agency has confirmed.
There are a further 163 probable cases linked to Flicks restaurant in Belfast's Cityside shopping complex.
In a statement on Friday, the PHA said their information suggested that there was no wider risk to the public from this outbreak.
It said the increase in confirmed cases over the past week was not unexpected.
This was as a result of probable cases becoming confirmed after testing. The PHA said the number of probable cases was levelling off as fewer new reports were coming forward.
Dr Carolyn Harper, director of public health said: "The PHA has activated a full public health response to this outbreak and the situation is being managed and monitored very closely.
"This is a complex, evolving and detailed investigation and all aspects of the outbreak are being examined thoroughly.
"As such, it would not be appropriate to comment at this stage on any potential cause of the outbreak, but as with all outbreaks, a full report will be made publicly available when the investigation and analysis is complete."
The restaurant remains closed.