New Covid variant NB.1.8.1 spreading in UK is ‘more transmissible’

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New Covid variant NB.1.8.1 spreading in UK is 'more transmissible' The new strain is one of six SARS-CoV-2 variants currently being monitored globally Covid vaccines are expected to be effective against the new variant (Image: Getty Images ) A new Covid-19 strain, NB. 1.8.1, is on the World Health Organisation's (WHO) radar after being listed as "under monitoring" since May 23 and making its mark in the UK. First identified on January 21, this newcomer to the virus scene has surged from 2.5% of global cases to an alarming 10.7% by late April 2025, according to WHO data. The NB....