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Life Expectancy, Influence on Health & Infectious Diseases
Transcript of Life Expectancy, Influence on Health & Infectious Diseases
Cecilia Arias Life expectancy Another indicator of a society's well-being lies in the life expectancy of its members at birth Women outlive men by about:
4 years in Europe and East Asia
3 in Subsaharan Africa
6 in North America
7 years in South America
In Russia today, the difference is approximately 14 years At the start of the century, life expectancy was 68 for women and 64 for men. Japan's life progress are the highest in the world
Japan's life expectancy is predicted to rise to 106 by the year of 2300 Subsaharan African countries have the lowest life expectancies. One of the major causes is the spread of AIDS.
Life expectancy: 40 years Influence on Health +
Well-being The dramatically lower figures for the world's poorer countries primarily reflect high infant mortality
A person who has survived beyond childhood can survive well beyond the recorded life expectancy Health and well-being are closely related to location and environment.
When an outbreak of a particular disease occurs, its source and diffusion are studied by specialists in medical geography. Specialists: Medical geographers- study -> diseases.
They use locational analysis to predict diffusion and prescribe prevention strategies. (cc) photo by theaucitron on Flickr Infectious diseases Diseases Chronic or degenerative diseases Genetic or inherited diseases Malaria Heart disease Hemophilia, sickle-cell anemia. TYPES Terms used to describe the spatial extent of a disease Endemic Epidemic Pandemic Small area Spread over a large region Global in scope Infectious diseases =o Infectious diseases continue to sicken and kill millions of people annually. XP Vectored HIV/AIDS erupted in Africa about 30 years ago, killed about 25million people since that time Non vectored infectious diseases Transmitted by an intermediary vector. Transmitted by direct contact between a host and a victim. A kiss a handshake, or even the slightest brush can transmit influenza, a cold or some other HIV/AIDS, transmitted principally by: sexual contact, needle sharing Ex. Malaria:, mosquito. Mosquito stings an already infected person called a host, and the next time that mosquito sting someone, he or she will be infected and turn into a host. Malaria, an old tropical disease, still takes more than a million lives annually and infects about 300 million people today. Other Vectors: Flies, Fleas, worms, snails And diseases such as: sleeping sickness, river blindness, guinea worm, elephantiasis