A condition that is transmitted by body fluids and is more contagious than HIV is:

Hepatitis B virus (HBV) is indeed more contagious than HIV and is transmitted through body fluids, including blood, semen, and vaginal secretions. The infectious nature of HBV is significant because it can survive outside the body for extended periods, which increases the risk of transmission compared to HIV. Additionally, HBV can be transmitted through perinatal routes from mother to child during childbirth as well as through sexual contact and sharing injection equipment.

In contrast, while Hepatitis A, syphilis, and gonorrhea also involve transmission through specific body fluids, their modes of contagion and the degree of contagiousness differ from that of HBV. Hepatitis A, for instance, is primarily transmitted through the fecal-oral route and is not considered to be more contagious than HIV, especially regarding direct transmission through body fluids. Syphilis and gonorrhea, though sexually transmitted and contagious, generally have a lower transmission rate compared to HBV. Therefore, HBV stands out in this context as the condition that possesses both a higher degree of contagion and the same type of transmission vectors as HIV.