BIOL 12100 Lecture Notes - Lecture 19: Schistosomiasis, Malaria, Myxoma Virus

• School: Purdue University
• Department: Biological Sciences
• Course: BIOL 12100
• Professor: A L L

Document Summary

Obtain nutrients from host with which closely associated. R = average # of infective offspring that 1 infected host gives rise to during lifetime. A = death from infected host (bonus death rate) 1/(a+d+y) = inverse of rate at which infection disappear. Produce about 400 eggs per day and lives 6 years. Produce about one million eggs during their life span. 2000 ceraine per day * 30 days. Resistant form cyst, sperm, egg => wait for host. Schistosoma cerarine released from snails at midday. Don"t reproduce until consuming the blood of a pregnant rabbit. Reduced virulence (ability to produce pathogenic effects) Virus => int virulence => highest transmission. Egg => larvae (intestine) => liver => right side heart => lungs. Cough them up the trachea => down to the gut. They live in cells that should destroy them. Macrophages suppose to destroy them; however pathogens prevents defensive response.