The number of cases in a coronavirus cluster linked to pupils at a Glasgow school in the north east of the city has risen to 11.
A further three positive cases had been identified by the NHS Greater Glasgow and Clyde (NHSGGC) test and protect service.
The health board said on Wednesday a number of pupils at Bannerman High School in Baillieston were among the eight cases already identified.
On Thursday they added there was "no indication any transmission has occurred in the school" and none of those affected returned to classes as the school reopened yesterday.
The health board also said the cases were not "causing any clinical concern".
Dr Linda de Caestecker, NHSGGC director of public health, said: "We would like to reiterate to local people and businesses that this cluster of cases of Covid-19 is being thoroughly investigated and managed by the NHSGGC Public Health Protection Team.
"To maintain patient confidentiality we are unable to give any further information on the cases.
"Each of these cases is being managed and followed up in detail, and all of them are isolating at home.
"All settings that these cases attended during their infectious period are being identified through the test and protect service and are assessed and supported with control measures.
"Anyone who may have been exposed to these cases is being given appropriate advice but want to remind people to stay off school or work and get tested if they experience any symptoms."
The school was reopened yesterday but none of the affected youngsters were in attendance and are self-isolating at home.
Health and local environmental health staff are working closely with the school and a number of other local businesses to contact trace any close contacts of the cases and appropriate advice is being advice given to these individuals.
Close contacts are being advised to self-isolate and being given appropriate advice.
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