Avery is studying the infection cycle in her biology class. What is the first element of the infection cycle that she learns about?

• Reservoir

• Infectious agents

• Portal of Entry

• Mode of Transmission

In a biology class, Michael learns about the chain of infection. He discovers that the second element, Reservoir, refers to what?

• The way a pathogen enters the body

• The final link in the chain of infection

• Any person, animal, or substance where an infectious agent lives

• The means by which a pathogen exits

During a biology class, Grace was explaining how infections spread. She mentioned that one way pathogens can leave the body is through certain fluids. Which of the following is a Portal of Exit?

• Fomites

• Mucous membranes

• Blood

• Susceptible host

Nora and Benjamin are studying different modes of disease transmission in their biology class. What are the two modes of transmission they learned about?

• Blood and Respiratory

• Contact and Vector

• Airborne and Waterborne

• Direct and Indirect

During a school field trip, Emma noticed that some of her classmates were getting sick after touching the same doorknob. What is the Portal of Entry?

• The way pathogens exit the body

• The means by which a pathogen moves to a host

• Where infectious agents get into the body

• The final link in the chain of infection

Avery has been feeling unwell and is worried about catching a cold. She often spends time with her classmates who are sick. Who is considered a susceptible host in this scenario?

• A pathogen in the environment

• An animal reservoir

• Someone at risk of infection

• A person with a strong immune system