Infection Prevention and Disease Transmission

The video from the CDC's Nerd Academy explains the interconnectedness of public health and human anatomy, focusing on the immune system's role in fighting infectious agents like viruses and bacteria. It details the chain of infection, modes of transmission, and various prevention strategies, including vaccination and hygiene practices, to control disease spread. The video emphasizes the importance of breaking the chain of infection to prevent contagious diseases and pandemics.

What is one of the primary roles of the immune system in public health?

• To aid in digestion

• To regulate body temperature

• To fight against microbes like viruses and bacteria

• To produce energy for the body

Which of the following is NOT a role of microbes in ecosystems?

• Contributing to organism diversity

• Causing all diseases

• Creating medicines

• Supporting nutrient flow

What is the first step in the Chain of Infection?

• Transmission to a new host

• Infectious agent causing symptoms

• Infectious agent entering a new host

• Infectious agent leaving its reservoir

Which mode of transmission involves physical contact between an infected source and a new host?

• Vector-borne transmission

• Indirect airborne transmission

• Vehicle-borne transmission

• Direct contact transmission

How can indirect airborne transmission occur?

• Through direct contact with an infected person

• By breathing in airborne particles left by an infected person

• Through a mosquito bite

• By consuming contaminated food

What is a vector in the context of disease transmission?

• A living organism that transmits an infectious agent

• A non-living object that carries an infectious agent

• A type of bacteria causing disease

• A method of direct transmission

Which of the following is an example of vehicle-borne transmission?

• A mosquito transmitting malaria

• A tick transmitting Lyme disease

• A person sneezing on another person

• Contaminated water spreading cholera

What is the purpose of the Swiss Cheese model in disease prevention?

• To explain the process of cheese fermentation

• To show how multiple prevention strategies can cover gaps in protection

• To illustrate the nutritional benefits of cheese

• To demonstrate the spread of diseases through food

Which prevention strategy reduces the number of susceptible hosts in a community?

• Surface cleaning

• Physical distancing

• Vaccination

• Hand washing

What is the main goal of infection prevention specialists like Ivy?

• To develop new vaccines

• To prevent transmission of infectious agents

• To study the genetic makeup of viruses

• To treat infected patients