I want to know the answer to the following question:
What is not always respected in popular use?
All the background I'm provided with is that "Other types of infectious/transmissible/communicable diseases with more specialized routes of infection, such as vector transmission or sexual transmission, are usually not regarded as "contagious", and often do not require medical isolation (sometimes loosely called quarantine) of victims.". Is that enough to answer the question?
Answer: no