Twenty charities are calling for more support for patients with severely weakened immune systems who risk severe Covid illness if they catch the virus. Many have had three jabs, but still need a fourth for better protection. For example, Hal Cohen had a kidney transplant two years ago and takes immunosuppressants to stop his body rejecting the organ. He had his third vaccine in July but was told despite this that his body is not making enough antibodies to fight off the virus. The charities said, ‘Those who are immunosuppressed due to a health condition or treatment are advised to have a fourth Covid jab three months after their third dose.’ They are calling a smooth rollout of booster jabs for these people, which should provide much needed extra protection.