Agents of Disease EOG Review Questions

Front

What is a vector in the context of disease transmission?

Back

A vector is an organism, often an insect, that transmits a pathogen from one host to another.

Front

Why is it important to get a flu vaccine every year?

Back

Viruses can mutate year to year, making previous vaccines less effective.

Front

What is the term for a disease that spreads to many regions of the world?

Back

A pandemic is an event in which a disease spreads to many regions of the world.

Front

What causes Strep Throat?

Back

Strep Throat is caused by a bacterium known as Streptococcus.

Front

What is a vaccine made from?

Back

A vaccine is made from a weakened or dead form of a pathogen.

Front

What is the role of pathogens in disease?

Back

Pathogens are microorganisms that cause disease, including bacteria, viruses, fungi, and parasites.

Front

What is herd immunity?

Back

Herd immunity occurs when a large percentage of a population becomes immune to a disease, making its spread unlikely.

Front

What is the difference between a virus and a bacterium?

Back

Viruses are smaller and require a host to replicate, while bacteria are single-celled organisms that can reproduce independently.

Front

What is an epidemic?

Back

An epidemic is a sudden increase in the number of cases of a disease above what is normally expected in a specific area.

Front

How do vaccines work to protect against diseases?

Back

Vaccines stimulate the immune system to recognize and fight pathogens without causing the disease.