Scotland is experiencing another wave of Covid-19 infections as cases of two Omicron variants increase, a public health expert has said.
Professor Linda Bauld said the Omicron sub-lineages BA.4 and BA.5. are part of the reason for the increase in cases and a "small but not significant" rise in the number of people in hospital.
However, she said that vaccines are working well in the vast majority of people and are making a difference between the risk from infection and the risk of severe disease.