NC Science 8.L.1

Why do doctors suggest that people get a flu vaccine each year?

• Viruses replicate more rapidly over time
• Viruses can mutate from year to year
• Vaccines are absorbed by the body after a year
• Vaccines get stronger over time

Which is the best day to help prevent the flu from becoming a pandemic?

• Getting a vaccination
• Taking antibiotics
• Eating fruits and vegetables
• Washing hands often

Malaria is a common disease in many countries. What type of pathogen is malaria?

• A virus
• A fungus
• A bacterium
• A protist

How can the rate of an infectious disease be drastically reduced?

• By taking medication daily
• By preventing transmission between people
• By wearing clean clothing daily
• By performing dental hygiene three times each day

Jill got a case of chicken pox when she was three years old. After she got it, Jill’s sister came down with chicken pox. What is chicken pox?

• an immune disorder
• b. an infectious disorder
• a noninfectious disease
• a type of egg

Which type of pathogen is responsible for causing the flu, chicken pox, and yellow fever?

• viruses
• fungi
• parasites
• bacteria

Malaria is an infectious disease that can be acquired when a mosquito carrying the protist Plasmodium falciparum bites a human. In the transmission of malaria, which of the following is the disease vector?

• the malaria illness
• the protist Plasmodium falciparum
• the person
• the mosquito

Influenza, strep throat, measles, and the common cold are all infectious diseases. Which of the following methods can be used to avoid getting infectious diseases?

• not washing fruit before eating it
• touching an infected keyboard
• sharing a drink only with family members
• washing your hands before eating

Sabrina has the flu. Her neighbor suggests she get a prescription for an antibiotic, but Sabrina's mother says that antibiotics would not help in this situation. Why?

• the flu is caused by a virus and it cannot be treated with an antibiotic.
• the flu is caused by a fungus, and it must be treated with an antifungal medication.
• the flu is caused by a parasitic worm, and it must be treated with an antihemlntic medication.
• the flu is caused by a bacterium, and it cannot be treated with an antibiotic.

Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?

• contact with the environment
• contact with an infected animal
• contact with a contaminated object
• contact with an infected person