In my country hiding HIV (or any other dangerous infections) from a partner or on jobs with high traumatism (where often cuts and blood around) can considered as attempt to murder in some situations or murder if person died. If person did not knew they had such disease - it can be seen as manslaughter instead if other person died and they will still pay compensation and partially paying for treatment.

We had this law because during HIV crisis we had drug addicts pricking other people with HIV-positive needless or cutting themselves and throwing blood on others, and later we had few men sleeping with many women and not saying they are HIV positive. So lawmakers made this law, and to HIV added other high risk diseases or deadly diseases. So if you will have smallpox, got diagnosed with it and then you go to a grocery store where a lot of people - you will be jailed after you get cured.

Same with rape by deception, it is crime and prosecuted even more strictly than regular rape (because all rape cases that have violence, manipulation, power position or coercive control included are considered heavier crimes than regular rape).