COVID-19: PCR and lateral flow tests could 'run out' temporarily amid surge in demand, say health officials

Coronavirus tests could be temporarily unavailable to order due to 'exceptionally high demand', the UK Health Security Agency has warned. Demand is surging as the more transmissible Omicron variant pushes cases numbers to record levels. Lateral flow and PCR tests were both unavailable for home delivery across the UK via the government website on Wednesday morning.