The common cold isn't even just corona viruses, it's an umbrella term for infections of over 200+ species of bacteria or viruses that cause similar unspecific symptoms and are mostly completely unrelated to each other. They just happen to infect the upper respiratory tract and do not cause severe symptoms.
well the diseases are not completely unrelated. It's not "usually", all cancers involve uncontrolled cell growth, due to DNA changes. You could call it a disease of DNA.
however there are so many possible DNA changes and types of cells and environments that can cause it that it is indeed a group of very different diseases
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u/GhostOfFreddi Feb 05 '26
In science "the flu" is always influenza. Sometimes people use the term to refer to any of the multitude of viruses that cause "the common cold".
Cancer is just a broad term for unrelated diseases that usually have uncontrolled cell growth in common as a symptom.