But top US medical adviser warns that the new COVID mutation is probably more contagious, and that it 'might take longer to see' its true severity

Statement comes as top health officials set to hold debate on approving fourth dose for those with compromised immune systems

Governor calls on New Yorkers to get vaccinated and wear masks, as several more US states report their first infections from the new variant

Rising Delta cases already force some governments to reintroduce restrictions; lab tests underway on Omicorn

Amid opposition to controversial cellphone surveillance, including from ministers, government says tool will only be used for carriers of variant, will end Thursday

Strain causing anxiety around the world given Greek alphabet designation, in line with previous major variants such as Delta, as scientists race to understand its risks

Germany and Netherlands ready for new restrictions as cases and hospitalizations surge, and virus-related deaths per day in Europe double from the rate seen in late September

Prime minister tells first coronavirus cabinet meeting in months that large gatherings may be banned if morbidity rises, floats antigen testing in school

Research published in Lancet also finds 3rd shot 81% more effective in preventing deaths compared to those who've had only 2 shots at least 5 months ago

Just 651 people test positive for coronavirus on Thursday; positivity rate for new cases steadily declines