 
 <prompt> Wetin dem dey call one virus wey dey spread well well? Based on di question wey dey before dis one, write small tori wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: One of di ways wey fit prevent or slow down di transmission of infectious diseases na to sabi di different characteristics of different diseases. Some important disease characteristics wey dem suppose check include how strong di disease be (virulence), how far victims dey travel, and how contagious di disease be. For example, di human strains of Ebola virus dey quick to make their victims weak and kill dem sharp sharp. As e dey so, di victims of dis disease no dey get chance to waka far from where dem first catch di infection. Also, dis virus dey spread through skin wounds or places wey dey easy to enter like eye. So, di early stage of Ebola no too dey contagious because victims dey only experience internal bleeding. Because of all dis features, di spread of Ebola dey very fast and e dey usually dey within one small area. On di other hand, Human Immunodeficiency Virus (HIV) dey kill victims slowly by attacking their immune system. Because of dis, many victims dey spread di virus to other people before dem even know say dem get di disease. Also, di small strength of di virus allow victims to waka long distances, wey fit increase di chance of epidemic. 