ANTB15H3 Lecture Notes - Lecture 7: Common Cold, Child Mortality, Abundant Number
Document Summary
Women spending most of their time at home exposed to the sick: physiological differences. Symptoms of cough and sputum expectoration less common in women . The onset of childbearing (possible stressor) delay in treatment seeking (long et al. , 2002) Possible that human tb is a mutant of bovine form. Cattle first domesticated in neolithic (6000-7000 b. c. ) in the old. World - suggestions that tb became an endemic human disease at this time. Can survive dessication: 4,000-gene sequence or genome of the. In a 24hr period an infected host can expel 2-4 billion bacilli. Immune system response - only a fraction of those infected will develop active disease. Robert koch: made a discovery : i know what causes tb -> bacillus. Ex. of a disease becoming less problematic with no intervention. Those people who are less susceptible are those that are the ones who survived. At the very end of the wave, they"re all immune to the disease.
