PBS Emergencies and Outbreaks

Which term refers to the spread of disease in a small region?

• antibiotic

• epidemic

• pandemic

• parasitic

After World War I, am outbreak of the Spanish Flu killed 50 million to 100 million people around the world. Which best describes this occurence?

• Epidemic, because it happened within a relatvely short time span.

• Epidemicm because it affected many individuals in multiple countries.

• Pandemic, because it happened within a relatively short time span.

• Pandemic, because it affected many individuals in multiple countries

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

On Monday, Kari exhibits, no symptoms of a viral illness. She is sick on Tuesday and stays hone from school. On Wednesday, her friends stay home with the same illness, despite having no contact with Kari when she was sick on Tuesday. which is the most likely explanation of how the other students became sick?

• Kari was immune to the virus but infected the other students

• the virus mutated and infected the other students after Kari got sick

• Kari was infected with the virus before she experienced any symptoms

• The virus was a carrier , and the other students were infected after Kari got sick

Which best distinguishes an infectious disease from a noninfectious disease?

• Infectious disease can be cured with antibiotics; noninfectious disease

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

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

• infectious disease cannot be transmitted from one organism to another; noninfectious can

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

• vector

• parasite

• mutagen

• pathogen

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

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

Which term refers to the spread of disease across a large region or sometimes worldwide?

• antibiotic

• epidemic

• pandemic

• pathogenic

Which best compares and epidemic and a pandemic?

• An epidemic is caused by bacteria, while a pandemic is caused by viruses

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

• A pandemic ocurs 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.