2. What invention helped scientists understand the
cause of disease? (year?)
Microscope 17th century
3. When did scientists realize the connection between
microorganisms and spread of disease?
Late 1800s-1900s
4. Louis Pasteur—who is he?, why is he important?
What did he discover about microorganisms?
Louis Pasteur was a French chemist who learned that
microorganisms cause disease in humans. He
invented Pasteurization.
5. Bacteria—what helps harmful bacteria grow and multiply
in your body?
What do bacteria do in your body? ( 2 things)
What are diseases caused by bacteria?
Temperature and nutrients help bacteria grow in your
body
Bacteria slow down the normal growth and metabolic
activities of body cells and tissues
Tetanus, TB, strep throat, pneumonia, plague
6. Virus—what does it do in your body?
What are diseases caused by a virus?
A virus infects cells leading to the destruction of
tissues or the interruption of vital body activities
Colds, flu, AIDS, measles, mumps, polio, smallpox
7. Protists—what do they do in your body?
What are diseases caused by protists?
Destroy tissues and blood cells or interfere with
normal body functions
Malaria, sleeping sickness
8. Fungus—what can a fungus cause?
Cause athlete’s foot, nonhealing wounds, chronic
lung disease or inflammation of the membranes of
the brain
9. Robert Koch—Why is he important?
Developed a method that is used to identify
organisms which helps in the treatment of the
disease
10. Infectious disease—Describe
A disease that is caused by a virus, bacterium, protist
or fungus and is spread from an infected organism
or the environment to another organism
11. List ways that infectious diseases can be spread
Direct contact with infected organism through water,
air, food or objects that are infected
Biological vectors
Human vectors
12. Biological vectors—What are they and list examples
Disease carrying organisms
Rats, birds, cats, dogs, mosquitoes, fleas, flies
13. Joseph Lister—what did he recognize and what did he do
about it?
An English surgeon recognized the relationship
between infections and cleanliness
He washed the skin with carbolic acid, a liquid that
kills pathogens
14. Sexually Transmitted Diseases—Definition
Infectious diseases that are passed from person to
person during sexual contact
15. Which STDs are caused by bacteria? How are they treated?
What can each do to your body?
Gonorrhea, chlamydia and syphilis
They are treated with Antibiotics
Can leave a person sterile because the sexual organs
can be damaged permanently
Syphilis can infect cardiovascular and nervous
sytems, eventually leading to death
16. Which STDs are caused by virus? Treatment?
Genital herpes is a viral disease that a person has
forever, there is no cure
Causes painful blisters on sexual organs
Sometimes antiviral medications are used for pain
and itching
