In many states it is a criminal offense to intentionally or recklessly transmit a sexually transmitted disease (STD or venereal disease) to another person. Examples of such diseases include HIV/AIDS, syphilis, gonorrhea, chlamydia, genital herpes, human papillomavirus (HPV), genital warts, and hepatitis B.

Laws vary from state to state, and in some states these laws include other infectious or communicable diseases. In some states there is a specific criminal offense for transmission of sexually transmitted or communicable diseases, and in other states criminal prosecutors charge the defendant with a more general crime like assault.

Laws regarding criminal liability for the intentional or reckless transmission of sexual or other infectious or communicable diseases are generally located in a state’s statutes—often in the penal or criminal code, or the health and safety code.

A person who negligently transmits a sexually transmitted disease to another person through sexual contact—without informing the other person of the offender’s infection before the sexual contact—may also be subject to civil liability for money damages in a lawsuit.

In Idaho, the transmission of a sexually transmitted disease (STD) can lead to criminal charges under certain circumstances. Idaho Code § 39-601 and § 39-602 address the transmission of contagious or infectious diseases, including STDs. Specifically, Idaho law makes it a misdemeanor to expose another person to a contagious or infectious disease knowingly or with reckless disregard. While these statutes do not exclusively focus on STDs, they are applicable to such cases. Additionally, Idaho Code § 18-601 defines assault, which could potentially be applied to the intentional or reckless transmission of an STD. On the civil side, individuals who negligently transmit an STD without informing their partner prior to sexual contact may face lawsuits for monetary damages. It's important to note that the specifics of each case can affect the applicability of these laws, and an attorney can provide guidance on the matter.