Additional doses of covid-19 vaccine recommended for immunocompromised patients

Additional doses of covid-19 vaccine are recommended for immunocompromised patients, especially for organ transplant recipients who are least able to make antibodies to fight off coronavirus, say experts in The BMJ today. The findings reinforce the importance of additional doses of covid-19 vaccine to protect people with a weakened immune system. It is already known that after vaccination, people with a weakened immune system (immunocompromised) are less able to make antibodies to fight off viruses, such as influenza, than people with a healthy immune system (immunocompetent). But less is known about the response to covid-19 vaccines, particularly mRNA vaccines.