In English, when talking about common viruses people get, there are generally two categories:
- a cold is generally mild and can come with runny nose, sneezing, coughing, sore throat etc.
- a flu is generally more severe and can bring fever, chills, fatigue etc.
In my experience, in Spanish both of these tend to be wrapped up in one word: gripe.
What are the official and informal ways of referring to these diseases? What regional variants exists?