The common cold is a viral infectious disease that infects the upper respiratory system. It is also known as acute viral rhinopharyngitis and acute coryza.
It is the most common infectious disease in humans and is mainly caused by coronaviruses or rhinoviruses.
Because there are more than 200 viruses that cause the common cold, the human body can never build up resistance to all of them. This is why colds are so common and often return. According to the CDC (Centers for Disease Control and Prevention), adults get 2–3 colds per year, and children may have up to 12 per year.
The common cold is contagious; it can be spread by air droplets from coughs and sneezes and by touching infected surfaces. It is contagious from 1–2 days before symptoms begin until the symptoms have stopped.
I am not sure of your point.
The world is full of shit that would love to kill you.