Omicron sub-variant BA.2 makes up 72% of COVID variants in US - CDC - SABC News - Breaking news, special reports, world, business, sport coverage of all South African current events. Africa's news leader.

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The US national public health agency said on Monday the BA.2 sub-variant of Omicron was estimated to account for nearly three of every four coronavirus variants in the country.

Overall COVID-19 cases in the United States have dropped sharply after hitting record levels in January, but a resurgence in cases in parts of Asia and Europe has raised concerns that another wave could follow in the United States.The seven-day moving average of US COVID cases was 26 106 as of April 1, marginally lower than 26 309 from a week earlier,as per data from the US Centers for Disease Control and Prevention .

The highly transmissible BA.2 sub-variant makes up 72.2% of the COVID variants in the United States, as of April 2, up from nearly 57.3% in the preceding week, according to CDC estimates. BA.2 now makes up about 86% of all sequenced cases globally, according to the World Health Organisation. It is known to be more transmissible than the BA.1 and BA.1.1 Omicron sub-variants, however, the evidence so far suggests that it is no more likely to cause severe disease.

Amid waning immunity and risks posed by the Omicron variants, US health regulators authorised a second booster dose of Pfizer/BioNtech and Moderna’s vaccine last week, for people aged 50 and above, as well as for younger people with compromised immune systems.

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