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LESSON: BIRD FLU: THE NEXT PANDEMIC?
By Lisa Prososki, a former middle and high school teacher

Subjects: Secondary Life Science, Biology, Health, and Current Events classes

Time: Four 50-minute class periods plus additional time for extension activities. Note: The first three parts of this lesson may be used as standalone activities.

Grade level: 10-12

Lesson Objectives:
Students will:
1. Utilize prior knowledge to answer questions about viruses and form a definition of the term virus.
2. Participate in a class simulation to learn about how viruses spread, often without the knowledge of those who are infected.
3. Discuss what they know about bird flu and check the accuracy of their facts using primary sources related to the topics and classroom discussion activities.
4. Examine the process used for developing disease fighting vaccines using primary sources and classroom discussion activities.
5. Create projects that illustrate what they have learned about viruses, bird flu, and the threat of a worldwide pandemic.
6. Share their projects with classmates to demonstrate their learning.

Background:
Over the past two years, 116 cases of bird flu have killed 60 people in Asian countries, and fear is mounting that the world could be on the verge of its next killer flu pandemic. With no cure for the flu strain known as H5-N1, and recent evidence that it may be resistant to anti-viral drugs such as Tamiflu, health officials and leaders are closely monitoring bird flu cases worldwide and putting in place plans for dealing with a flu pandemic. Researchers are focusing on how the virus mutates and are working to develop effective treatment and a vaccine that will curb the spread of the flu if the virus changes enough to become easily transmittable from human to human.

Materials Needed

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Correlation to National Standards

PROCEDURES

PART 1: What is a Virus and How Does it Spread? - 50 mins
1. To create student interest have students use their prior knowledge to answer the questions on the What Do You Know? handout. Encourage students to work in small groups to answer each question. Allow approximately 5 minutes for this activity.

2. When groups have finished answering questions, conduct a class discussion by reviewing the correct answer for each question and providing students with background information and details about the answers to each question. Encourage students to take notes as you discuss the questions as a class. A good teacher resource to aid in the discussion is available at: http://science.howstuffworks.com/virus-human7.htm

3. Write the word "virus" on the board or overhead. Direct students to write their best definition of a virus based on what was learned from the What Do You Know? handout and class discussion.

4. Have students share their definition of a virus and then provide the correct definition on the board or overhead. A correct definition could be something such as: virus: a microorganism that can cause a variety of diseases when it grows and reproduces in the living cells of another organism.

5. Pose the following question for students: "How do viruses spread?" Provide students with several minutes to brainstorm and discuss this question. Write key words and ideas about how viruses spread in the form of a list on the board or overhead.

6. To illustrate how a virus can spread, conduct the following simulation with the class.

  • Direct all students in the class to write their names on a piece of scratch paper and place it on your desk.
  • Randomly choose the name of one student in the class and place it in an envelope. Do not allow students to see the name of the person.
  • Make a chart with 5 columns on a large piece of paper, the board, or overhead (See PDF sample)
  • Choose a student (not the one whose name appears in the envelope) to go around the classroom and shake hands with four classmates. Record the name of that student at the top of column 1 and the names of the four classmates s/he shook hands with under his/her name. Their names should also be written at the top of the four remaining columns.
  • Direct these four students to go around the classroom and shake hands with four other students
  • Under each person's name, record the names of the four students they shook hands with during the exercise.
  • Open the envelope and reveal the name of the person who has the virus.
  • Study the chart and see how many students were directly exposed to the virus by shaking this person's hand.
  • Study the chart again and see how many students were indirectly exposed to the virus by shaking the hand of someone who had shaken the hand of the infected person.

Use this activity to discuss how viruses are transmitted from one person to another, often unknowingly or before the signs of illness are present. Discuss how this can lead to epidemics of an illness in a relatively short period of time.


PART 2: Examining the Bird Flu Virus - 50 mins
1. Write the term Bird Flu on the board or overhead. Conduct a class discussion about what students already know about bird flu by using questions such as:

  • What is bird flu?
  • What causes bird flu?
  • Who is at risk for getting bird flu?
  • How is bird flu transmitted?
  • When was bird flu discovered?
  • Where are the greatest number of cases of bird flu surfacing?
  • Why is there so much concern about bird flu worldwide?
  • What is a pandemic?

2. Read the article "Health Officials Prepare for Bird Flu Pandemic" available at http://www.pbs.org/newshour/extra/features/july-dec05/birdflu_10-12.html with students and revisit the questions from step 7 above.

3. Using the article "Bird Flu Drug Ineffective" from Washington Week with Gwen Ifill available at http://www.pbs.org/weta/washingtonweek/voices/200510/1017world0.htm. Discuss what can be done to prepare for a bird flu pandemic if the virus mutates so that human to human contact becomes an easy way to transmit the disease and current treatments are ineffective. Be sure to hit on the idea of developing a vaccine in this discussion.


PART 3: Developing a Bird Flu Vaccine? - 50 mins
1. Using resources such as "How Are Vaccines Made?" from The Children's Hospital of Philadelphia available at http://www.chop.edu/consumer/jsp/division/generic.jsp?id=75749, examine the processes used for making vaccines to treat viral illnesses such as the flu.

2. Read the article "Bird Flu" from the Online Newshour available at
http://www.pbs.org/newshour/bb/health/jan-june05/flu_5-26.html, and discuss what will make developing a vaccine for bird flu virus H5-N1 more challenging than some other viruses. In this discussion, address ideas such as:

  • the strength of the H5-N1 virus
  • lack of human exposure and antibodies for this virus
  • the high death rate from the virus
  • the world's inability to produce enough vaccine in time for everyone to use
  • the changes that could occur to the virus as it mutates over time


PART 4: Demonstrating What You Have Learned - 50 mins
1. Now that students have a basic understanding of viruses and how they are spread, information about bird flu, and knowledge of how vaccines are made, they should create a project that demonstrates what they have learned and requires them to conduct additional research to take their learning to a higher level.

2. Distribute the Bird Flu Project Guidelines and review the project options as a class. Provide students time to choose a project and begin work on their research. The amount of class time spent preparing projects should be based on the time constraints of the individual teacher. Some additional class time (at least part of 1 class period) will be needed for students to present their projects.


Extension Activities
1. Invite the school nurse and/or experts from the community (county health department, a local hospital, etc.) to come to the classroom to participate in a panel discussion related to the risk of bird flu, flu outbreaks, and health measures people can take to prevent themselves from getting sick from a variety of viral diseases. Students should prepare questions in advance and ask the experts for their ideas and opinions related to the topics above.

2. Using resources such as "Secrets of the Dead: Killer Flu" available at http://www.pbs.org/wnet/secrets/case_killerflu/clues.html, have students research previous flu pandemics, particularly the 1918 event that killed more than 20 million people worldwide and the less deadly outbreak of Hong Kong flu in 1968. Create graphic organizers (Venn Diagrams) that illustrate the similarities and differences between these pandemics as well as the specific strains of the flu and the symptoms they produced. Compare these events to what is predicted if we experience a global bird flu pandemic in the next few years.


Correlation to National Standards:
McRel Compendium of K-12 Standards Addressed:

Health
Standard 2: Knows environmental and external factors that affect individual and community
health.
Standard 8: Knows essential concepts about the prevention and control of disease
Science
Standard 4: Understands the principle of heredity and related concepts
Standard 7: Understands biological evolution and the diversity of life
Language Arts
Writing
Standard 4: Gathers and uses information for research purposes
Reading
Standard 5: Uses the general skills and strategies of the reading process
Standard 7: Uses reading skills and strategies to understand and interpret a variety of
informational texts
Listening and Speaking
Standard 8: Uses listening and speaking strategies for different purposes
Working with Others
Standard 4: Displays effective interpersonal communication skills

 

About the Author: Lisa Prososki is an independent educational consultant who taught middle school and high school social studies, English, reading, and technology courses for twelve years. Prososki has worked with PBS TeacherSource and has authored and edited many lesson plans and materials for various PBS programs over the past nine years. In addition to conducting workshops for teachers at various state and national meetings, Prososki works as an editor, creates a wide range of educational and training materials for corporate clients, and has authored one book.

To find out more about opportunities to contribute to this site, contact Leah Clapman at extra@newshour.org.

 

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