Covid face masks ‘did not stop spread of Omicron’
Coverings helped to reduce infection rates but once highly infectious variant swept across UK they were ineffective, study finds
![People queue outside a walk-in Covid-19 vaccination centre at St Thomas's Hospital in Westminster](/https/www.telegraph.co.uk/content/dam/news/2024/05/15/TELEMMGLPICT000377731735_17157951942210_trans_NvBQzQNjv4BqgsaO8O78rhmZrDxTlQBjdLdu0TL-Cg_AMOUqySXmFgU.jpeg?imwidth=350)
Coverings helped to reduce infection rates but once highly infectious variant swept across UK they were ineffective, study finds