Common experienced may encounter like not chewing properly the food. Baby mostly encounters it especially when they are starting to eat food. Adults as well, talking while eating when there comes a point in their conversation that they are giggling with their topic and one of their friends choke accidentally the food.
Well, they are a major cause of HPV. There are differents groups of STIs. On one side we have the bacterial STIs, and on the other we have the viral STIs. Hope this helps.