A new Covid vaccine has been approved for use in the UK by regulators. It is manufactured by Valneva, using more traditional technology - similar to how polio and flu shots are made. It contains a whole copy of the virus which has been inactivated, so that it can't cause the disease but does teach the body how to fight it. The UK was due to receive 100 million doses of the jab, but the government cancelled the deal in September due to a ‘breach of obligations’. As with the AstraZeneca and Pfizer vaccines, it is designed to be given as two doses. The Commission on Human Medicines said, ‘We have advised that the benefit risk balance is positive. The vaccine is approved for people aged 18 to 50 years, with the first and second doses to be taken 28 days apart.’