Preventing Infectious Diseases Chapter 28, Lesson 3 Preventing Infectious Diseases

Immunity Active Immunity Passive Immunity Long term protection Remembers the pathogens it meets Last lifetime Passive Immunity Temporary that an infant gets from its mother

Immunization Passive Immunization Active Immunization Immediate, short-term protection Take blood from infected person or animal Blood contains antibodies Inject into non-infected person Active Immunization AKA – vaccination Pathogen introduced into body Strong enough to make body produce antibodies Not strong enough to make person sick

Vaccine Types Live-virus Killed-virus Toxoids Made from weakened viruses Virus cannot cause the disease, can stimulate antibody production Killed-virus Can stimulate antibody production Cannot cause illness Not as strong as live-virus vaccines Toxoids Chemically treating bacteria to release toxins Release stimulates production of antibodies

Immunization for All In some cases it is the law School Many disease have been controlled or eradicated Some getting lax Diseases making a comeback

Common Sense Measures Avoid contact and avoid spreading pathogens Keep body healthy Bathe and shower Avoid sharing utensils/water bottles Store/prepare food properly Wash hands after bathroom use Keep away from people if sick Avoid people that are sick or take protective measures

Homework Continue work on report – due Tuesday 4/28 Health Terms on page 642 (2) Read pages 642 – 645 Review questions page 645 (1 – 5)