Christian Aid wants faith leaders in Britain's black African communities to talk more about HIV and AIDS.
HIV among Africans in the UK is 30 times higher than the general population.
UNAIDS estimate that 35.3 million people worldwide were living with the disease last year. It is a slight increase on previous years but experts say it's due to the number of people staying alive longer due to receiving drug treatment.
Between 2001 and 2012, infection rates fell from 3.4 million people to 2.3 million.
However, HIV infections have increased by 13% in eastern Europe and central Asia since 2006. In the Middle East and north Africa infection rates have doubled since 2001.
Winney Sseruma from the charity told Premier's News Hour why a change in attitude towards the disease is needed.
It's World Aids Day on Sunday, December 1st.