New figures show almost half of people who have HIV in England, live in the capital.
That same study shows that the number of gay and bisexual men being diagnosed with HIV reached an all-time high last year.
Nick Thatcher reports.
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You'll recognise Canary Wharf and the London skyline – minus the Shard, Gherkin and O2 arena.
Dry with clear spells tonight. Lows of 6°C
A cordon was put in place by emergency crews at the height of this morning's rush hour.