EESA10H3 Lecture Notes - Tuberculosis, World Health Organization
27 Mar 2012
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Human health and environment lec 7: biological hazards and human health. Growing germ resistance to antibiotics because people are taking antibiotic when they are not supposed and also it enters the food chain because it is in food. Also, microbes mutate very quickly make them quickly resistant to antibiotics. High reproductive rate allow them to become genetically resistant quickly. Antibiotic is only used for bacterial not viral diseases. There are three kinds of biological hazards: bacteria, viruses, protozoa. Medieval times associated tb with vampires as patients coughed up blood. Caused bacillus bacteria many forms of tb and bacillus bacteria. People in poor housing (sunlight, mould, dampness), poor nutrition and no rest have decreased immunity more susceptible to tb active tb with decrease in immunity. Not a very common illness in north america. Transmissions cough, sneeze, speak, kiss, or spit of ill person transfers from person to person.
