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Set Cornell Notesand on pg. 31.1upPathogens Human Illness 65 31.4 Immunity and Technology 2.1 Atoms, Ions, and Molecules •Topic: 31.4 Immunity and Technology •Essential Question(s): 1. Under what circumstances might antibiotics NOT be useful in treating a disease caused by a pathogen? 2. Summarize: Write out the steps that your immune system takes when you are vaccinated. KEY CONCEPT Living in a clean environment and building immunity help keep a person healthy. 31.4 Immunity and Technology KEY CONCEPT Living in a clean environment and building immunity help keep a person healthy. 31.4 Immunity and Technology • The risk of getting sick increases when there are many people in one area 31.4 Immunity and Technology • How do we control the spread of disease? Pg. 64 – Cleaning supplies – Medicines – Vaccines – Technologies that help to prevent against sickness OR treat people who are sick 31.4 Immunity and Technology Many methods are used to control pathogens. • Antibiotics and antiseptics cause pathogens to burst. 31.4 Immunity and Technology • Antiseptics kill pathogens outside of the body. – do not target specific pathogens – examples include vinegar and soap • Antibiotics kill pathogens inside the body. – target one specific bacterium or fungus – not effective against viruses 31.4 Immunity and Technology • Antibiotics are over used and over prescribed!!!!! – Leads to antibiotic resistance 31.4 Immunity and Technology • Antibiotic resistance can cause medicines to become ineffective. – Some bacteria develop an immunity to antibiotics. – These bacteria spread the gene, making the antibiotics useless. 31.4 Immunity and Technology • Vaccines also control pathogens and disease. – given to prevent illness – contain the antigen of a weakened pathogen - (contains the dead, weakened, or inactivated pathogen) 31.4 Immunity and Technology • Vaccination provides immunity. – stimulates a specific immune response – causes memory cells to be produced – allows immune system to respond quickly to infection – has such a fast response, a person will not get sick 31.4 Immunity and Technology P. 64 Antibiotics Vaccines Antibiotic Resistance (5m4s) • https://www.youtube.com/watch?v=zjR6L38yReE Antibiotics (1m33s) Immunity and Vaccination 3m 6s Vaccines and the Treatment of Viruses 3m 27s 31.4 Immunity and Technology WORK ON NOTEBOOK!!!! • NOTEBOOK Check on Wed • Ch. 31 Test on Wed • All labeling Test on Wed • Wednesday is an important day!!!!