HLTB21H3 Study Guide - Final Guide: Retrovirus, Subtypes Of Hiv
Document Summary
Macro-parasites many celled, cycles through transmission stages, it passes through the external environment, don"t multiply in host. I ncubation period time interval where the disease develops visible multiplication, replication (infection to symptoms) Latent period inactive period b/w infection and onset of disease (infection to contagiousness) Parasite virulence capacity of a parasite to cause disease. Mature epidemics: non-infected ppl born after the epidemic get a massive attack later on as another wave hits. Three things determine if an endemic disease can turn into a pandemic: herd immunity. 2: attack rate: #ppl with illness/ total # ppl at risk. Lungs fill with pus, confusion loss of me mory. Aspira tion: act of taking into lungs while chocking. Toxic shock syndro m e ( 1 9 7 9 ) Decreases as: parasite mortality increases or trans. dec. Eggs reach fresh water and release larva: mir acidiu m. mircidia penetrate snails and form sporocysts in liver.
