The Latest Breaking News from Omicron

The government is advised to reimpose strict Covid-19 prevention measures, including the mandatory use of face masks, to help limit the spread of Omicron sub-variants BA.4 and BA.5, the head of the Faculty of Medicine Siriraj Hospital said on Tuesday.

The increase in cases has been driven by sub-variants of Omicron, with other symptoms including a sore throat and muscle pain

The latest variants are masters at evading immunity – meaning previous infection and vaccines are unlikely to provide much protection against catching it

Australia is heading for its third Omicron wave in the coming weeks, as BA.4 and BA.5 become the dominant COVID strains.

LOS ANGELES — In a sign of how the new coronavirus wave continues to spread across California, two-thirds of the state’s counties are now in the high COVID-19 community level, in which the U.S. Centers for Disease Control and Prevention recommends universal masking in indoor public spaces.

Patient levels are now around two thirds of the peak reached during the Omicron BA.2 wave.

Two Omicron sub-variants are causing a sudden spike in Covid cases across the UK. Here are the symptoms of the BA.4 and BA.5 coronavirus sub-variants that you need to be aware of

It is reported the latest rise stems from two new variants of the Omicron strain.

Why COVID cases are rising and what we know about how past infections and vaccines interact with Omicron BA.4 and BA.5.