Covid-19 boosters increase protection against death from the Omicron variant to 95% in people aged 50 or over, the UK Health Security Agency (UKHSA) said on Thursday.

The UKHSA said that around six months after a second dose of any of the COVID-19 vaccines, protection against death with Omicron was around 60 percent in those aged 50 and over. However, this increased to around 95 percent two weeks after receiving a booster vaccine dose...