8.L.1.2

Which aspect of modern life could MOST likely cause an epidemic to turn into a pandemic?

• vaccination

• transportation

• communication

• sanitation

Which tool is MOST responsible for preventing future pandemics of smallpox?

• worldwide vaccination for smallpox

• global education about smallpox

• better worldwide urban sanitation

• improved global quarantine facilities

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NGSS.HS-ETS1-3

The human immunodeficiency virus (HIV) causes AIDS. The first known human cases AIDS were in Africa in the late 1950s. Since then, tens of millions of people have died from the disease, and tens of millions more people all over the world are infected. Which term BEST describes the disease AIDS?

• isolated cases

• outbreak

• epedemic

• pandemic

Millions of people living all over the world have cancer. Is cancer a pandemic?

• No, because cancer is not contagious.

• No, because cancer is not always fatal.

• Yes, because millions of people have cancer.

• Yes, because people all over the world have cancer.

A city has an outbreak of a disease that affects an unusually large portion of its population at the same time. Which term BEST describes the outbreak?

• pandemic

• plague

• epidemic

• infection

In 1918, an outbreak of influenza infected 500,000 people all over the world. Tens of millions of those infected died. In 1994, an outbreak of pneumonic plague spread quickly through the city of Surat in India, killing 52 people. Which statement BEST describes the two events?

• Both outbreaks were pandemics.

• Both outbreaks were epidemics.

• The influenza outbreak was a pandemic. The plague outbreak was an epidemic.

• The influenza outbreak was an epidemic. The plague outbreak was a pandemic.

Which is a distinction between an epidemic and a pandemic?

• the symptoms of the disease

• the geographical area affected

• the species of organisms infected

• the season in which the disease spreads

Which situation would most favor the spread of infectious disease?

• overcrowding

• use of vaccines

• small population

• sanitary conditions

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.

Scientists are trying to prevent an epidemic of a highly contagious disease. What information should the scientists study first?

• how the disease reproduces

• the treatment of the disease

• the symptoms of the disease

• how the disease is transmitted