Danish citizens with weak immune systems such as cancer patients receiving chemotherapy, or those with organ transplants, will soon be recommended to get a Covid-19 vaccine booster, Reuters quoted the Danish Health Authority (DHA) as saying.

Guidelines for revaccinating people with weakened immune systems will be published next week, said the DHA, adding that knowledge in the field is still very limited at this point in time.

“However, it does suggest that certain individuals with significant immunodeficiency need a third injection ... to prevent a serious case of disease if they get infected with Covid-19, even though they have been fully vaccinated,” it said.

If data show a need to give booster shots to other groups, such as elderly people in nursing homes, it would not hesitate to recommend this, it added.