Your saliva typically protects you against bacteria in your partner’s saliva.
(There will be more bacteria when oral hygiene is poor.) But one bacteria that can be transmitted is MRSA, the serious staph infection.
Also, if you have a cold sore, kissing someone can spread the herpes 1 virus.
Can you catch anything from saliva?
Kissing can transmit many germs, including those that cause cold sores, glandular fever and tooth decay. Saliva can transmit various diseases, which means that kissing is a small but significant health risk.
Can thyroid spread through saliva?
A thyroid infection from a virus or inflammation can clear on its own. If the thyroid infection is symptomatic, it needs supportive care. Thyroid infections do not occur from kissing or from sharing a cup.
Can you get a disease from drinking after someone?
And there’s also mononucleosis, which is sometimes called the “kissing disease” — that can go on the list, too. So we have strep, the common cold, mumps, meningitis, herpes, and mono. These are easily the most common, and will make up the majority of any “diseases you can catch via saliva/mouth” list.