Disease & Defense Against Disease
Pathogen – a disease causing organisms – May be: – viral (HIV, chicken pox) – bacterial (TB, strep) – fungal (athletes foot) – Protozoan (malaria = plasmodium) – Flatworm – Roundworm How to get infected? – airborne; waterborne; food; insect transmission; STI; skin Barriers to infection – skin, mucous membranes Specific defenses – production of…