Hong Kong's subway operator, bus companies and one of the city's biggest supermarket chains said they were reducing services this week due to a worsening COVID-19 outbreak that has seen daily infections explode since early February.
Britain s behemoth Covid booster campaign is stalling with the latest NHS figures revealing that less jabs are being delivered on some days than before No10 promised to give 500,000 jabs a day.
A first dose of AstraZeneca followed by a second dose of Moderna or Novavax induces more antibodies and T-cells than two AstraZeneca injections, Oxford University researchers found.
New Kings College London study shows early Covid symptoms could be mistake for a vaccine side-effect. Scientists say this could lead the vaccinated to spread the virus instead of self-isolating.