Connecticut is using a shrinking pool of federal funding for HIV/AIDS prevention to focus on getting more people into treatment, particularly men whose sexual activity puts them at risk. New HIV/AIDS cases are falling in Connecticut, especially among injection drug users, but men who have sex with men make up a growing proportion of diagnoses in the state. They are also the largest group affected by HIV nationally. Getting these men tested and into treatment is key, as medication now drastically reduces the risk of infected people passing on the virus. AIDS workers say that “men who have sex with men’’ includes gay and bisexual men and men who identify themselves as heterosexual, despite having sexual relations with other men.