The contaminated blood scandal has been labelled the worst treatment disaster in the history of the NHS.
John Cornes said he does not know how long he has left and that he "could die next month".
Derek Martindale, giving evidence on the first day of the Infected Blood Inquiry, was diagnosed with HIV in 1985 and given a year to live.
More than 3,000 people died after being treated with blood products infected with Hepatitis viruses and HIV during the 1970s and 1980s.
Health officials say the prolonged hot weather has led to a drop in supplies.
A new test for a life-threatening blood condition has the potential to save many thousands of lives, British scientists have said.
A rapid test for Sepsis, a blood condition caused by an overwhelming immune reaction to infection, means the NHS can treat the disease with antibiotics much quicker than before.
Each year sepsis costs the NHS more than £2 billion and kills around 37,000 patients - more than breast and bowel cancer combined.
Lead researcher Professor Graham Lord, explained: "We have for the first time identified a group of biomarkers in the blood that are good indicators of sepsis.
"We have shown that it is possible to detect these markers by screening a patient's blood in the ward, a process which can deliver results within two hours."