
This study has explored the geographical and demographic patterns of transmissibility of HIV/AIDS in Karnataka of India, using yearly epidemiological time series, made available by monitoring and evaluation unit, Karnataka State AIDS Prevention Society. We identified spatial variations of the transmissibility of HIV by age and sex using various statistical methods. The Games-Howell Post Hoc analysis created four homogeneous subgroups. Northern Karnataka is more severally affected by HIV than southern Karnataka, in this region the commercial sex workers networks is more intense than other part of Karnataka. In addition in northern Karnataka the HIV epidemic tends seems to be more advanced in rural than in urban areas.