Unit 2 (epidemiological transition model)

Question 1

ETM

Answer 1

• Epidemiological transition model
  Model that predicts stages in disease and life expectancy

Question 2

Stage 1 (pestilence and famine)

Answer 2

• Infectious diseases
• Pandemics
• Humans killing each other
  Death rate: high
  Life expectancy: low

Question 3

Stage 2 (receding pandemics)

Answer 3

• Pandemics decline (improved healthcare)
  Death rate: decreasing
  Life expectancy: increasing

Question 4

Stage 3 (degenerative and human-created diseases)

Answer 4

• Diseases associated with aging
  Death rate: low
  Life expectancy: increasing

Question 5

Stage 4 (delayed degenerative diseases)

Answer 5

• Some delay in degenerative diseases
  Death rate: lowest level
  Life expectancy: highest level

Question 6

Stage 5 (reemerging of infectious diseases)

Answer 6

• Bacteria and parasites become resistant (mutations and variants) to antibiotics and vaccines
  Death rate: rising again (maybe??)
  Life expectancy: lowering again (maybe??)