From the HPA "about Us" section .
Same link.
The Agency combines public health and scientific knowledge, research and emergency planning within one organisation – and works at international, national, regional and local levels. It also supports and advises other organisations that play a part in protecting health.

The Agency's advice, information and services are underpinned by evidence-based research. It also uses its research to develop new vaccines and treatments that directly help patients. Although set up by government, the Agency is independent and provides whatever advice and information is necessary to protect people's health.

Don Firth, are you casting doubt on the testimony of the greatest professional experts on AIDS in UK?
What would you put the figure at Don?