In many areas where WHO works, there are many illnesses caused by different type
In many areas where WHO works, there are many illnesses caused by different types of microorganisms. Understanding the field of microbiology will help you to sort out the harmful and beneficial effects of microorganisms. Think about what you already know about microbes. Are they all bad? See if you can think of beneficial and harmful microorganisms. What tools would you need to identify microorganisms that cause disease?