A pharmacy in Inverclyde is one of a number of businesses that have been linked to a novel coronavirus cluster.
Eight linked positive tests are believed to be among the 14 new cases reported in the Greater Glasgow Board of Health area.
NHS Greater Glasgow and Clyde said none of the cases showed anything other than mild symptoms.
He added: “Close contacts are advised to self-isolate and other identified contacts are followed up and given appropriate counseling. ”
The prime minister said an incident management team is meeting to discuss the development.
The cases were among 22 reported across Scotland in the past 24 hours.
- Live: Latest news on coronavirus in Scotland
Nicola Sturgeon has previously said localized outbreaks of the virus are almost inevitable, following clusters in North Lanarkshire and Dumfries and Galloway.
However, the prime minister said the ‘test and protect’ system was working well, with the number of people being treated in hospital for Covid-19 remaining low.
Ms Sturgeon said: “Part of the challenge we have around any potential cluster is to ensure that anything that can be done to minimize onward transmission is done. ”
The prime minister said people should be assured that “any suggestion of links between cases or possible clusters or epidemics is absolutely rigorously explored, investigated and addressed.”
News of the cluster came as National Records of Scotland said the number of coronavirus-related deaths increased very slightly, with Covid-19 being mentioned on eight death certificates from the week to Sunday.
This was an increase of two deaths from the six recorded the previous week.
Ms Sturgeon said the numbers were likely to fluctuate at such a low level, pointing out that the total number of deaths in Scotland was below the five-year average.
However, she said her government was likely to “take a very cautious approach” during the next review of the lockdown restrictions on Thursday.
She said “very significant changes” had been made in recent weeks, with the reopening of the hospitality and tourism industries, and said it was “still too early to be completely sure” of the impact. of that.
Ms Sturgeon said it was important not to “do it too too fast and give the virus a chance to overwhelm us again”.
The Prime Minister is expected to give more details on when and how Scottish schools will reopen on Thursday.