Disease Spread

Which would most likely prevent a cold virus from spreading through a classroom?

• Have a large supply of tissues on the teacher's desk.

• Have all students wash their hands regularly with soap.

• Have all students shake hands regularly with all students.

• Have all students wipe desk with dry paper towel as end of class.

Which illness is spread by eating food that has been contaminated by bacteria?

• botulism

• influenza

• tuberculosis

• Lyme disease

Which will most likely occur when the quality of sanitation in an area improves?

• The number of disease carriers will increase.

• The number of infectious disease cases will decrease.

• The amount of available food resources will decrease.

• The amount of necessary medical treatment will increase.

Which best distinguishes an infectious disease from a noninfectious disease?

• Infectious diseases can be cured with antibiotics; noninfectious diseases cannot.

• Infectious diseases can be prevented with vaccines; noninfectious diseases cannot.

• Infectious diseases can be spread from one organism to another; noninfectious diseases cannot.

• Infectious diseases cannot be transmitted from one organism to another; noninfectious diseases can.

The Black Plague killed about 100 million people in the fourteenth century. The bacteria that caused the plague was carried by fleas on rats and traveled great distances. Which would have most directly limited the spread of the disease?

• cleaner water sources

• refrigeration of food and water

• reduction in the rodent population

• better medicines to treat infected individuals

Tags

NGSS.MS-LS2-4

A mosquito can spread the West Nile Virus but remains unaffected by the disease. Which best describes the mosquito?

• vector

• parasite

• mutagen

• pathogen

Which poses the greatest challenge for researchers when attempting to locate the source of a nationwide food based salmonella outbreak?

• cost of the study

• time needed for the study

• number of people affected

• number of food producers involved

Which would most likely be the responsibility of an epidemiologist?

• treating a microbial infection

• diagnosing a microbial infection

• studying genetically modified plants

• determining the source of a disease outbreak

How are an epidemic and pandemic alike?

• Both involve a viral infection

• Both involve a bacterial infection.

• Both involve an outbreak of a disease.

• Both involve small numbers of infected individuals

Which best compares an epidemic and a pandemic?

• An epidemic is caused by bacteria, while a pandemic is caused by a virus.

• A pandemic is caused by humans, while an epidemic is spread by insects and rodents.

• A pandemic occurs in a small region, while an epidemic occurs in a much larger region.

• An epidemic affects a small population of humans, while a pandemic affects a large population of humans.