In English, when talking about common viruses people often get, there are generally two categories:
- a cold is generally more 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 with Spanish, almost all of this tends to be wrapped up in one word: gripe. What are the official and informal ways of referring to these diseases? What words exist in Spanish and what varieties of illness do they refer to? What regional variation exists?