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MEDICAL GEOGRAPHY
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The Green Revolution: Miracle or Debacle
Ethical problems Ownership of new genetic “strain” One-sixth of the Earth’s population is seriously malnourished Rural areas hardest hit Male vs. female caloric intake
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Nutrition and Diet Caloric consumption
Protein and carbohydrates important Wide variation among the world’s population “Hidden hunger” Early protein deficiency leads to damage
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World Caloric Intake
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Mitigating the Risks Ten areas where action should be taken to reduce the likelihood of a food crisis (from UN): Population Continue Green Revolution Expansion of farmlands Encourage local production Promote land reform Enhance food distribution systems Search for alternative food sources Better policies for ocean fishing Reduce meat consumption Endorse social change
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The Distribution of Health
Medical geography Core areas and difussion Distinct spatial patterns Contagious diseases Location of clinics Transportation routes Medical imagery technology
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Infant and Child Mortality
Infant mortality rates (IMR) Mirrors a society’s health Mother’s physical health is key High IMRs can be found in poorer countries Lacking clean drinking water and/or hygienic human waste-disposal facilities
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A Rural Community Water Source
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Infant and Child Mortality
Malnutrition and child mortality Poorer areas = lower life expectancy Child mortality rates staggeringly high in much of Africa and Asia Kwashiorkor Lack of protein early in life Marasmus: Inadequate protein and insufficient calories
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Infant and Child Mortality
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Life Expectancy An indicator of a society’s well-being
Regional contrasts Age contrasts
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The Distribution of Disease http://www. ted
Medical geography and disease Major types of diseases Infectious diseases Chronic or degenerative diseases Genetic or inherited diseases Disease terminology Epidemic Pandemic Endemic
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Vectored: Malaria www.worldmapper.org
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The Distribution of Disease
Medical geography and disease Disease diffusion (infectious diseases) “Agents” and viruses Disease reservoirs in hosts Nonvectored vs. vectored Disease transmission
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The Distribution of Disease
Vectored infectious diseases: Malaria
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The Distribution of Disease www.worldmapper.org
Vectored infectious diseases: Yellow fever
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The Distribution of Disease
Vectored infectious diseases: Sleeping sickness (trypanosomaisis)
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The Distribution of Disease
Vectored infectious diseases: Tropical regions: Schistosomiasis, Onchocerciasis…
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The Distribution of Disease
Nonvectored infectious diseases: Cholera
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Dr. Snow & Cholera (1854)
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http://www. ted. com/talks/lang/eng/steven_johnson_tours_the_ghost_map
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The Distribution of Disease
Nonvectored infectious diseases: Influenza 1918 “worldwide pandemic” (WP = Bush-ism) Originally from China
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Recent outbreaks of flu www.worldmaper.org
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The Distribution of Disease www.worldmaper.org
AIDS Identified in 1980s in Africa > 40 million infected by 2002 Dimensions still uncertain A blood-borne disease Africa most affected Botswana (highest) vs. Uganda (slowed) Need for development and intervention
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The Distribution of Disease
Chronic diseases The leading cause of death in the US Ever-changing list Other factors may be affecting our health New dangers confront children Lead-based paints Water “treatments” Obesity
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http://urbanhealthupdates. wordpress
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The Distribution of Disease http://worldfocus
Genetic diseases Chromosomal mutations or accidents (evolution?) Some are selective Metabolic problems Galactosemia: a primary adult disease African geophagy No cattle or milk livestock = galactosemia
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Epidemiologic Transition Stage
Stage 1: Pestilence and Famine Deaths by animal attacks Accidents Infectious and parasitic diseases
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Epidemiologic Transition
Stage 2: Stage of receding pandemics. Improved sanitation Improved nutrition Improved medicine during the Industrial Revolution
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Epidemiologic Transition www.worldmaper.org
Stage 3: Degenerative and human-created diseases, a decrease in deaths from infectious diseases of stage 2. -heart attacks -cancer
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Epidemiologic Transition www.worldmapper.org
Stage 4: Delayed degenerative diseases Cancer and heart disease still remain but life expectancy is extended through medical advances Reduced use of tobacco, alcohol and better diet and exercise
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Epidemiological Transition
Stage 5: New strains of viruses are bacteria resistant Poverty prevents paying for medicine Improved travel: rural residents can go to the urban areas for contagious diffusion SARS AIDS SMALLPOX
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Resources http://www.ted.org www.worldmapper.org
De Blij, Harm, J. (2010). Human Geography People, Place and Culture. Hoboken, NJ: John Wiley & Sons Inc. Domosh, Mona, Neumann, Roderic, Price, Patricia, & Jordan-Bychkov, The Human Mosaic, A Cultural Approach to Human Geography. New York: W.H. Freeman and Company. Fellman, Jerome, D., Getis, Arthur, & Getis, Judith, Human Geography, Landscapes of Human Activities. Boston, MA: McGraw-Hill Higher Education. Pulsipher, Lydia Mihelic and Alex M. and Pulsipher, World Regional Geography, Global Patterns, Local Lives. W.H. Freeman and Company New York Rubenstein, James M. (2011). An introduction to human geography The cultural landscape. Upper Saddle River, NJ: Pearson Prentice Hall.
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