NFxDoc17

Haha, I anticipate this will be the top question asked today. The bad things that happen from chronic nose pickers are nosebleeds, especially if you have other factors going on (like being on blood thinners, or have high blood pressure). The worst I have seen are patients developing ulcers along their septum from OCD-related nose picking, which are pretty bad. Eating the actual contents, however, is probably harmless. Bon appétit!

Not necessarily. The current research estimates that anywhere from 40-60% of all COVID cases will experience some sort of loss of taste and/or smell.

I will say with certainty that eating your boogers will not vaccinate you against any sort of infectious disease.

So that is still a big question, and one that we don't have a definitive answer to yet. Yes, what you've stated is a potential theory. Younger children appear to produce fewer ACE2 receptors, making it more difficult for the virus to infect cells. Additionally, the lower lung volumes of children cause less viral particles to spread into the air.

Additionally, another theory is that young children appear to be developing more inflammatory-like conditions toward the coronavirus, as compared to young adults and adults whom present with the typical peumonia/cough. So although children may still get the disease, they are less likely to spread it because they are not producing as many virus containing respiratory droplets.

Edit: To answer your first question, there is growing evidence that children under the age of 10 are indeed less vulnerable. Like with many other infectious diseases, it would make sense if they are less able to become infected, they are less likely to spread it to others. How much less, however, is still widely unknown.

Usually temporary, most people recover within a month of experiencing the changes to their smell.