 
 <prompt> If you wan talk say e dey spread, but you no wan use dat word, wetin be another way to talk am? Given di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: Infectious diseases sometimes dey call contagious disease wen dem dey easily spread through contact with sick person or their secretions (e.g., influenza). So, contagious disease na subset of infectious disease wey dey very infective or easily spread. Other types of infectious/transmissible/communicable diseases wey get specialized ways wey dem dey spread, like through vectors or sexual transmission, dem no dey usually see as "contagious", and dem no dey often need medical isolation (wey sometimes dem dey call quarantine) of victims. But, this specialized meaning of the word "contagious" and "contagious disease" (easy spread) no dey always respected for popular use. 