Stealth Omicron is one of the most contagious diseases around, according to a former World Health Organisation official.
The Covid variant, which is known as BA.2, has become the most dominant strain in Scotland. It is believed to account for around 80 per cent of new infections.
Professor Adrian Esterman, an epidemiologist in Australia, has claimed that the new Covid variant is ‘pretty close to measles’ in terms of transmissibility.