Infectious Agents and the Chain of Infection

Which type of infectious agent has to "hijack" a cell in order to make copies of itself? 

• Bacteria
• Virus
• Helminthe
• Protozoa

What type of infectious agent is roundworm?

• Bacteria
• Virus
• Helminth
• Protozoa 

What type disease transmission involves an animal "carrier" 

• Person-to-Person
• Animal-to-Person
• Environmental Reservoirs 
• Vector-borne 

Which type of Infectious Agent is influenza? 

• Virus 
• Bacteria
• Protoza
• Prion

Which are examples of Environmental Reservoirs for diseases/ infectious agents? (mark all that apply)

• Contaminated food

• Soil

• Water

• Fomites

Soil and water are types of:

• Vectors 
• Carriers 
• Portals of Exit
• Environmental Reservoirs 

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

What are these following structures examples of:
-Respiratory Tract
-Gastrointestinal Tract 
-Mucous Membrane
-Skin Lesions/ cuts/ abrasions

• Sources of entry/ exit
• Vectors 
• Infectious Agents 
• Modes of Transmission 

Which is an example of Vehicle Born Transmission? 

• Person-to-person contact
• Mosquito bite 
• Use of unsterile medical instruments 
• Floating pathogens in the air

Which of the following factors affect how susceptible a host is to infection? 

• Genetic Factors
• General Factors 
• Immune System Strength 
• All of the above are factors 

Tags

NGSS.MS-LS3-1

Which is the most difficult type of disease transmission to prevent?

• Person to Person

• Airborne

• Vehicle Borne

• Vector Borne