HOW A STEM CELL TRANSPLANT CURED THE BERLIN PATIENT AND THE LONDON PATIENT The vast majority of humans carry the gene CCR5. Both the Berlin patient and the London patient received stem cells donated from people with that crucial mutation. UNKNOWN QUANTITIES Interestingly, both the Berlin patient and the London patient experienced complications that are normally lethal in most other cases. Mr Castillejo's HIV status complicated matters because there is little information about how to treat both diseases together. When referring to being the second patient cured of HIV, he still chooses to go by the 'London patient', and not Adam.

Source: Daily Mail March 09, 2020 16:29 UTC