HIV-positive expatriate health insurance policyholders may face a lot of stigma.
Terrence Higgins Trust head of parliamentary and public affairs Catherine Murphy said the discrimination towards people with AIDS or HIV often comes from medical professionals.
"We hear regular stories of problems in dentistry," she explained, asserting that individuals have reported being rejected by dentists or continually getting the last appointment of the day so tools can be sterilised.
"There is quite a lot of research in this area," the expert added, noting that much of the prejudice is based on "a very outdated understanding" of the illness.
Ms Murphy stated that most people would expect healthcare workers to be some of the most knowledgeable and sympathetic, but this sector is actually "one of the worst offenders".
The Terrence Higgins Trust was one of the initial charities to be established to respond to the HIV epidemic and was set up in 1982 in memory of Terry Higgins.