Worksheet: Spread of Pathogens

In this worksheet, we will practice recalling the different routes pathogens are spread by, and suggesting methods that could prevent their spread.

Q1:

Which of the following is not a way that pathogens can be spread?

  • AThrough email and internet communications
  • BThrough consuming contaminated water (waterborne)
  • CThrough direct contact with contaminated surfaces
  • DThrough the air (airborne)
  • EThrough exchange of bodily fluids

Q2:

How can the spread of diseases like HIV and gonorrhea be prevented?

  • ABy sterilizing drinking water
  • BBy using insect repellent and mosquito nets
  • CBy washing food before preparing it
  • DBy using condoms during sexual intercourse
  • EBy coughing or sneezing into a tissue

Q3:

By what method of transmission is the measles virus primarily spread?

  • ADirect contact
  • BAirborne transmission
  • CExchange of bodily fluids
  • DContaminated food
  • EWaterborne transmission

Q4:

Chalara ash dieback and powdery mildew are examples of plant diseases caused by fungi. How could the spread of these diseases be prevented?

  • ABy planting more plants in an area affected by these diseases
  • BBy spraying plants with fungicide
  • CBy encouraging infected plants to reproduce
  • DBy spraying plants with insecticide
  • EBy leaving the plants to fight off the infection

Q5:

Ebola is a very virulent disease caused by a pathogen carried in bodily fluids. The pathogen enters the body through breaks in the skin or through mucous membranes in the eyes and mouth.

What type of pathogen causes Ebola?

  • AFungi
  • BBacteria
  • CVirus
  • DProtist

What method of transmission does the Ebola pathogen use?

  • AVector transmission
  • BWaterborne transmission
  • CDirect transmission
  • DAirborne transmission

Q6:

Which of the following is not a good example of practicing good hygiene?

  • AUsing the same chopping boards for raw meat and vegetables
  • BWashing hands after using the toilet
  • CUsing disinfectants on surfaces in the kitchen and bathroom
  • DSneezing or coughing into a tissue rather than hands
  • EWashing hands when preparing food

Q7:

Colds and flu are spread by coughing and sneezing.

What type of transmission is this?

  • AAirborne transmission
  • BDirect contact transmission
  • CVector transmission
  • DWaterborne transmission

How could the spread of flu and colds be prevented?

  • ASterilizing water sources
  • BPracticing good hygiene
  • CDestroying vectors
  • DWashing contaminated food

Q8:

The beet curly top virus (BCTV) is carried and spread by insects. How could the spread of BCTV be prevented?

  • ABy washing the plants with soap and water
  • BBy using insecticides on crops
  • CBy sterilizing water sources
  • DBy planting more crops within an area affected by BCTV
  • EBy spraying plants with a fungicide

Q9:

Which of the following would not be an effective way of preventing the spread of a disease?

  • AIsolating individuals that are infected with the disease
  • BHaving poor sanitation systems in crowded areas
  • CVaccinating children and those vulnerable to the disease
  • DEnsuring that people practice good hygiene
  • EDestroying vectors that may carry the disease

Q10:

By what method of transmission is malaria spread?

  • AContaminated food
  • BVector transmission
  • CAirborne transmission
  • DWaterborne transmission
  • EContaminated water

Q11:

By what method of transmission is HIV spread?

  • AContaminated food
  • BAirborne transmission
  • CWaterborne transmission
  • DTransmission of certain bodily fluids
  • EContaminated water

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