31.1 Pathogens and Human IllnessSet up Cornell Notes on pg. 65
•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.
2.1 Atoms, Ions, and Molecules
31.4 Immunity and Technology
KEY CONCEPTLiving in a clean environment and building immunity help keep a person healthy.
31.4 Immunity and Technology
KEY CONCEPTLiving 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?– Cleaning supplies– Medicines– Vaccines– Technologies that help to prevent against sickness OR
treat people who are sick
Pg. 64
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
– allows immune system to respond quickly to infection
– causes memory cells to be produced
– has such a fast response, a person will not get sick
31.4 Immunity and Technology
Immunity and Vaccination 3m 6sVaccines and the Treatment of Viruses 3m 27s
P. 64
Antibiotics Vaccines
Antibiotic Resistance (5m4s)• https://www.youtube.com/watch?v=zjR6L38yReE
Antibiotics (1m33s)
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!!!!