Older people with HIV need more help living with the condition, according to the Royal College of Nursing.
Around a fifth of all people in the UK who are HIV positive are now aged 50 and over, but there is often a lack of training for health care workers and a lack of knowledge among the public, said the RCN on the eve of its annual congress in Liverpool.
Nursing staff will be debating the issue of HIV awareness at the event tomorrow.
Dr Peter Carter, chief executive and general secretary of the RCN said: "Nursing staff are seeing an increasing number of older people with HIV and too often they can see that the system is failing them.
"Many nurses also feel that they could be better used to help older people with HIV by coordinating care and reducing the stress of dealing with multiple conditions."