The National AIDS Trust has said that measures to stop visitors to the UK taking advantage of healthcare for free would also threaten the health of Britons.
The proposals, if enforced, would undermine years of work to encourage marginalised at-risk groups to access HIV testing and treatment.
By limiting access to primary care for some migrants living in England we would cut off the only place many of them will get an HIV diagnosis - short of presenting at A&E many years after they were infected, once they are very seriously ill.
We are calling on the Government not to limit universal primary care access to migrants living in England. If they go ahead they risk putting lives at risk and accelerating the spread of HIV in the general population.
A Department of Health spokeswoman said people with HIV would still receive free healthcare if the scheme went ahead.
More top news
"You are one of the silence breakers and we all owe you a debt of gratitude."
Maximum temperature 11 C (52 F).
A cut in stamp duty to help first-time buyers is likely to push prices by at least the amount the reduction is supposed to save, MPs said.