The difference between general population UK, effectively zero prevalence, and the MSMs and African born, is to do with their practices.
The second part is not racist. It acknowledges that the virus does not discriminate between racial groups. The difference is what people do. That includes Royston's precious networks, but the networks established in Africa would take time to become established here.
In my links you will find details of the high risk practices that were found to be prevalent in the African communities here.

When considering epidemiology in a population of 60 million Royston, "luck" can not regarded as a serious factor!

Lox, I have been pointing out that the infection levels in heterosexuals are far lowere that the rare disease criteria.
Now we see that most of those are accounted for by a newly arrived high risk group.
They caused your dogleg up turn.
Before that upturn the incidence was, and still is, comparable with lightning strike. no one is campaigning for intervention on the risk of that!

I do not have any specialist knowledge and merely report the work and considered opinions of the experts in the field.
Royston and Lox, from what position of authority do you challenge these groups who all endorse the information I have provided?
Avert, Terence Higgins trust, Department of Health, National Aids Trust, Afrivan HIV Policy Network • Action For Men • Addington Afro-Ethnic Health Promotion Group (AAEGRO) • Africa Advocacy Foundation • African Caribbean Resource Centre • The African Child • African Communities Team at Camden PCT • African Community Involvement Association • African Community Development Association • African Community Partnership • African Culture Promotions (ACP) • African Development Network • African Families Support Service (AFSS) • African Health Care and Counselling Service • African Health for Empowerment and Development (AHEAD) • African HIV Policy Network (AHPN) • African Institute for Social Development • African Refugee Community Health and Research Organisation (ARCHRO) • African Support & Project Centre (ASPC) • African Youth Organisation • Barnet African Health Organisation • Begin & Our Project • Black Gay Men's Advisory Group • Black Health Agency • Body Positive Luton • Body Positive North West • Bromley PCT • The Brunswick Centre • The Cara Trust • Catholic HIV / AIDS Ministry – Westminster Archdiocese (CATHAM) • Central Liverpool PCT • Centre for All Families Positive Health (CAFPH) • Centre for HIV and Sexual Health Sheffield • Che Jama at NHS Norfolk • Community Health Action Trust (CHAT) • Community of Congolese Refugees in Great Britain (CORECOG) • Congolese Community Council • Congolese Youth Association • Crescent Support Group • Derbyshire Friend • DHIVERSE • Embrace Community Support Centre (Embrace UK) • French African Welfare Association (FAWA)