The Black Death
originated in the Gobi Desert, travelled by ship & land, followed trade routes, transmitted rat-flea-human, certain professions killed more (doctors and clergy)
3 Types of the Plague
Bubonic (lymphnodes), Pneumonic (lungs), Septicaemtic (blood)
Tried to cure with incense, sound (church bells), charmes and spells... actually destroyed by heat
Death Rate of the Plague
Killed 1/3 of Euro's population
5-20% of population gets flu each year, 200,000 are hospitalized, 36,000 die, virus lasts a week at regular temp and 30 days at freezing temp,
Kills by uncontrollable hemorrhaging that fills the lungs - drowning the patient, tended to select young healthy adults as victims, 675,000 died from it, worldwide between 50-100 million, started in Kansas in army barracks
Discovered in US in early 1980's, has killed more than 25 million people, spherical in structure, attaches to t-cells
Slow moving virus which takes a long time to produce any adverse effects in the body
Clinically evident disease caused by presence of microbial agents (viruses, etc)
Infectious Agents which cause disease in animals and/or plants
Infectious pathologies which can be transmitted
Affects healthy host
Affects sick host
Transmitted through kissing, coughing, etc.
Transmitted through contaminated food/water
Inanimate object which transfers a disease
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