There is no reliable data on the extent to which AIDS has increased in the rebel-held north of Cote d'Ivoire since civil war broke out 16 months ago, but recent informal studies by one haematologist working at the main hospital in the northern town of Korhogo showed alarming results. Dr Assad Ouattara told IRIN on Monday that he had tested 60 patients at the Korhogo hospital for HIV/AIDS so far this month. Of these, 35 - more than half - were found to be infected with the fatal virus.