Which of the following diseases can be spread through saliva?

Meningitis herpes ,Hepatitis B – kissing may also transmit this virus, although blood has higher levels of this virus than saliva.

You could get a cold, the flu, mono, or the herpes virus through kissing if the other person is infected. You can also spread meningitis through saliva. Oral microbiota (found in the saliva and on the tongue) and bacteria (in the saliva) — which can lead to gum disease — can be transmitted through kissing

The biggest life lesson for me is that karma is a real thing