NHS Grampian has confirmed the number of positive Covid-19 cases detected at The Hawthorn Bar in Aberdeen now stands at 27.
Investigations are ongoing to identify those who may have been in contact with the virus after 13 cases were discovered on Sunday.
It is understood customers, who tested positive for Covid-19, visited the Holburn Street pub on July 26.
Dr Emmanuel Okpo, consultant in public health medicine, said: “It is not entirely surprising further cases have been detected. This virus is still circulating in our communities. It poses a risk to all of us.
“People who have not gone to this bar, or who live in other parts of Grampian, should not assume they are somehow safe.
“Anyone who develops symptoms of Covid-19 – a loss of their sense of taste or smell, a fever, or a new, continuous cough, should isolate at home immediately and arrange a test.”
He continued: “I want to send a very clear message to anyone who is contacted by our Test & Protect team and advised they are a close contact of a detected case: please follow the guidance and self-isolate for 14 days.
“You should only book a test if you have symptoms. Getting a test which comes back as ‘not detected’ when you do not have symptoms will not remove the need to self-isolate.
“I know the past four months has been extremely challenging for all of us and I understand the desire to meet up and socialise now more venues are opening. I must emphasise again the need for all of us to take personal responsibility.
“If you arrive at a venue and feel it is too busy to observe physical distancing, then consider leaving.”
The Hawthorn Bar – after a deep clean and ‘defogging’ – has been allowed to re-open and there has been no indication of any deficiency in its practices to date.
