They might be any of the diseases which generate immunity inside your body for future attacks, like small pox, chicken pox, measles, etc.
because it causes diseases
because you can get infectious diseases
Microorganisms can be harmful or beneficial. They can cause diseases but the also help with digestion and combat diseases
They can replace cells to treat or cure diseases.
There are more than three contagious diseases. The top three contagious diseases are flu, HIV and Ebola.
There isn't just specifically three diseases caused by bacteria.
Ernst Gram has written: 'Recognition of diseases and pests of farm crops' -- subject(s): Injurious and beneficial Insects, Plant diseases
Three types of diseases of the cardiovascular system are cardiomyopathy, stroke, and high blood pressure.
A beneificial use is that researchers can perform advanced experiments on many different diseases!!!!!!!!!!!!!!!!!!!!
Yes, dirt can be beneficial to your health and boost your immune system.
steroids
The effects of the Columbian Exchange were both harmful and beneficial. This is because the diseases caused native Americans to die but new goods were spread to different areas.