Germ Theory and Viruses

What did people believe caused diseases before ancient Greece?

• evil spirits

• germs

• bad water

• bad air

Which ancient Greek scientist said that sickness is caused by "bad air"?

• Pasteur

• Koch

• Hippocrates

• Snow

What is the theory that diseases come from bad air?

• miasma theory

• germ theory

• cell theory

• hippocratic theory

Which doctor from the 1840's told us that hand washing can stop the spread of diseases?

• Hippocrates

• Snow

• Pasteur

• Semmelweis

Which scientist blamed contaminated water for the spread of diseases, such as Cholera?

• Snow

• Pasteur

• Semmelweis

• Koch

Which scientist worked with wine to discover that the idea of spontaneous generation is wrong?

• Koch

• Semmelweis

• Pasteur

• Snow

Which scientist created a set of rules to identify the germ responsible for causing diseases?

• Pasteur

• Semmelweis

• Snow

• Koch

Which is not part of Koch's Postulates?

• Pathogens will be found in the body of sick organisms and not in healthy ones

• Pathogens will be spread through water

• Pathogens can be isolated from a sick organism and grown in the lab

• Pathogens injected into a 2nd host will cause the same disease as the 1st host

What is the idea that infections diseases are caused by microorganisms (germs)?

• Cell Theory

• Miasma Theory

• Theory of Evolution

• Germ Theory

What is NOT something that we do now because of germ theory?

• "scrub in" for surgery

• avoid breathing stinky, bad air

• vaccinate people to prevent infection

• sanitize tools at an orthodontist office