Infecions and disease are caused by microorganisms that invade the body.
these include:
these are all called pathogens.
The ideal conditions for microorgamisms to reproduce quickly is in warm,damp and moist places (e.g inside the human body)
When the pathogens reproduce inside the body they cause an infection.
Some pathogens take longer than others to cause infection.
Comments
No comments have yet been made