<unk> , also called voluntary<unk> , conscious<unk> , or<unk>  transmission is the act by which a human being deliberately infects another with a pathogen knowing that they will be infected. In some legislations of some countries this act has been criminalized, managing to prosecute it and consider it as aggravating for fraud or recklessness. One of the most frequent cases of<unk><unk>  is that of viruses and bacteria that are considered sexually transmitted infections, being commonly the most common methods through the malicious use of syringes and the unsafe sexual act, such as the criminal transmission of HIV.
Intentional contagion of infection
Laboratory-acquired infection
Spillover infection
Opportunistic infection
Airborne transmission
Vertically transmitted infection
Blood-borne disease
Mosquito-borne disease