Individuals who are immunocompromised have a weakened immune system, resulting in a decreased ability to fight infections. Immunocompromise can be caused by many different factors such as certain medical conditions, being a transplant recipient, advancing age or taking medications that suppress the immune system.
Vaccination is particularly important for those who are immunocompromised, due to the increased risk of developing severe disease if exposed to vaccine-preventable diseases.
We have recently reviewed our reference page on immunocompromise/immunosuppression and vaccines. The page includes up-to-date information on vaccine timing, contraindicated vaccines and safe alternatives, what to do in the event of inadvertent administration of a live-attenuated vaccines, and advice for household contacts of immunocompromised people.