Which of the following is not a typical way for a person to catch a disease?
A. From pathogens in boiled water.
B. From pathogens in the air.
C. From pathogens in poorly cooked food.
D. From physical contact with an infected person.
Imagine you were investigating the cause of a mysterious disease. Which of the following would not be important to determine?
A. The food that the diseased people recently ate.
B. Who the diseased people were in contact with recently.
C. Where the diseased people had recently been.
D. How wealthy the diseased people were.
Where would a disease transmitted by person-to-person contact be most likely to spread quickly?
A. In a remote region, where contact between people is rare.
B. In a rural farming community, where neighbors live miles apart.
C. In a crowded city.
D. In a medical lab, where people wear protective gear (face masks, gloves, etc.) and equipment is regularly sterilized.
What type of disease transmission is most likely represented by the graph shown below?
Graph of disease spread




A. Person to person.
B. Foodborne.
C. Airborne.
D. Foodborne and airborne.
Which of the following patterns is most likely to indicate a foodborne illness?
A. All of the victims worked in the same office.
B. All of the victims were friends.
C. All of the victims shopped at the same supermarket.
D. All of the victims had the same symptoms.