8.L.1.2 Epidemiology & Immunity CYU

How are quarantines used to slow the spread of an epidemic?

• Quarantine prevents individuals from eating food that is potentially contaminated

• Quarantines allow enough time for antibiotics to take effect in infected individuals

• Quarantines keep infects individuals separate so they cannot pass the disease to others

• Quarantines keep people inside their homes so that family members can provide care for each other

Many school districs are placing dispensers of hand santizer in classrooms and computer labs. Which of the following is the MOST likely purpose of this practice?

• conserve water resources

• control noninfectious diseases

• promote safe use of technology

• limit diseases spread by contract

Tags

NGSS.HS-ETS1-3

Which is 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 would be least effective in preventing the spread of a disease-causing organism?

• the use of vaccines

• the use of antibiotics

• a decrease in pesticides use

The Spanish Flu of 1918 occurred during World War I and killed between 30 to 50 million people worldwide. Which best explains the spread of this virus?

• The Spanish Flu quickly became a pandemic due to the close quarters and distances traveled by troops.

• The Spanish Flu quickly became an epidemic due to the close quarters and distances traveled by troops.

• The Spanish Flu quickly became a pandemic due to the lack of antibiotics and poor hygiene of the troops.

• The Spanish Flu quickly became an epidemic due to the lack of antibiotics and poor hygiene of the troops.

How is the prevention of an epidemic different from the prevention of a pandemic?

• Preventing an epidemic requires the use of antibiotics, while preventing a pandemic requires the use of vaccines.

• Preventing a pandemic requires uninfected and infected people to wash their hands, while preventing an epidemic requires people to wear gloves.

• Preventing a pandemic requires vaccinating large numbers of people dispersed over a wide geographic area, while an epidemic requires vaccinating fewer people spread over a smaller area.

• Preventing an epidemic requires vaccinating large numbers of people spread over a wide geographic area, while a pandemic requires vaccinating fewer people spread over a smaller area.

There was a Salmonella outbreak at the local schoolhouse. Which would best explain the type of outbreak that has occurred?

• It is an epidemic, because a lot of students got sick at school.

• It is a pandemic, because a lot of students got sick at school.

• It is an epidemic, because it spread over a large region.

• It is a pandemic, because it spread over a small region.

Which is the most likely reason bacteria populations do not grow at exponential rates in nature?

• Conditions necessary for growth occur for a long time.

• Conditions necessary for growth occur only for a short time.

• The environment changes, and conditions are always favorable.

• The environment changes, and conditions are not always favorable.

Tags

NGSS.HS-LS2-6

The 2003 SARS (sudden acute respiratory syndrome) virus was contained to about 8000 cases, mostly in Asia. Which is the best explanation for the prevention of a pandemic?

• Infected people in Asia were given massive doses of antibiotics to kill the virus and prevent it from spreading beyond Asia.

• Travel from Asia to other countries was halted for several weeks to prevent further spread of the virus beyond Asia.

• Travel from Asia to other countries was increased for several weeks to prevent the spread of the virus beyond Asia.

• Infected people were given vaccinations to kill the virus and prevent it from spreading beyond Asia.

Tags

NGSS.HS-ETS1-3

Five students get sick with a cold after a weekend field trip to the aquarium with their classmates. Which best explains why these students became sick?

• contact with infected fish

• contacted with infected person

• contact with contaminated food

• contact with contaminated water