treponema pallidium Syphilis
Borrelia Burgdorferi which is the cause of Lyme disease
a object to use to write anything such as personal things,preivate things,secrets ,whats happening in your life
The spread of Islam from Mecca to all the other countries around it.That's an example because Contagious Diffusion is The distance-controlled spreading of an idea, innovation, or some other item...
Your wife or husbsnd cheating on you
flying