 
 <prompt> Wetin be di type of disease wey no dey specialized: sexual, influenza or vector? Based on di question wey dey before, 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 person wey dey sick or their secretions (e.g., influenza). So, contagious disease na small part of infectious disease wey dey very infective or easy to spread. Other types of infectious/transmissible/communicable diseases wey get specialized ways of infection, like vector transmission or sexual transmission, usually no dey classified as "contagious", and dem no dey need medical isolation (sometimes dem dey call am quarantine) of victims. But, the special meaning of the word "contagious" and "contagious disease" (easy transmissibility) no dey always respected for popular use. 