Immune System Day 2

Compare and Contrast Nonspecific Response vs. Specific Response Bell Ringer Compare and Contrast Nonspecific Response vs. Specific Response

Learning Target Describe how the human immune system responds to vaccines and/or antibiotics

What are the three factors that can change your health? Essential Question What are the three factors that can change your health?

Classroom Discussions Explain what the word “passive” means. Use it in a sentence. Explain what the word “active” means. Use it in a sentence. Have you ever had a vaccine? What is it meant to do? Do you think we should be vaccinated? When do you take antibiotics? What do they do?

Passive means: Active means: Answers to accept or embrace without effort; to be submissive Active means: A clear response to something; movement

https://www.youtube.com/watch?v=QgpfNScEd3M

Acquired Immunity The injection of a weakened form of a pathogen to produce acquired, active immunity is known as vaccination. Today, more than 20 serious human diseases can be prevented by vaccination. A vaccine is an immuno-biological substance designed to produce specific protection against a given disease.

Common Vaccines Chickenpox (varicella) Age 12–15 months Diphtheria Age 2 months Haemophilus influenzae type b infections (such as meningitis) Age 2 months Hepatitis A Age 12–18 months Hepatitis B Birth Human papillomavirus (for girls) Age 11 years Influenza Age 6 months Measles Age 12–15 months Meningococcal meningitis Age 11–12 years Mumps Age 12–15 months Pertussis Age 2 months Pneumococcal infections Age 2 months Polio Age 2 months Rotavirus Age 2 months Rubella (German measles) Age 12–15 months Tetanus Age 2 months

Classroom Discussion Why do you think so many people are vaccinated? What might happen if fewer people or more people were vaccinated? An injection usually contains a weakened form of a disease-causing agent, the person who is getting injected will produce? What cells are responsible for this? (Hint we learned about it last class) Question 3 person will produce antibodies against disease.

The antibodies produce a passive immunity against the pathogen. Antibodies produced by another person against a pathogen are injected or put into the bloodstream of different person The antibodies produce a passive immunity against the pathogen. Example Breast Milk

Passive Immunity is SHORT Protection from passive immunity diminishes in a relatively short time, usually a few weeks or months. For example, antibodies passed from the mother to the baby before birth confer passive immunity to the baby for the first 4-6 months of life during development or in early infancy through breast milk. Deliberate passive immunity occurs when travelers to certain regions of the world are given vaccines before leaving home. very first line of defense and is always available to the body, whereas active immunity takes time to develop, and can be triggered only when the antigen crosses the epithelial barrier and reaches the lymphoid organs. Passive immunity is not as effective in eliminating the antigen as is active immunity.It is non specific, whereas Active immunity is invoked in response to a specific antigen and is more effective and powerful in eliminating the antigen.

What is the difference between passive and active immunity? Quick get the sticks What is the difference between passive and active immunity? Can you come up with a cool way to remember the difference between the 2?

Antibiotics A medicine that stops the growth of of microorganisms that make us sick and destroys them

Classrooms Discussion -How does your immune system responds to vaccines? - How does your immune system respond to antibiotics? -Are too much of these treatments good for your health?

Notebook Output A few people have in today's society refuse to get vaccinated or medications for their illnesses. Others have reactions ranging from rash to serious illness when they take these medications. How would you weigh the risks to an individual of getting the disease versus the risks of the vaccine itself? How would you weigh those risks against the benefit to society as a whole?

Let’s play a game

Exit Ticket Must be taken on the tablets today before you leave!!!! 8 questions…