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Lecture 3

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Department
Natural Science
Course
NATS 1670
Professor
Motti Anafi
Semester
Fall

Description
Life expectancy in the US went up from 1900-1927 to below 50 to below 60 In 100 years or so, we almost doubled life expectancy in the US & Canada Due to this, population has increased From 1960 to 2010, it’s almost 7 billion In 1880 the cause of death was infectious diseases; today it’s approximately 6% We were able to create vaccines, antibiotics, and reduce dramatically the death of infectious diseases in developed countries Life expectancy in Canada vs. Africa is a lot and this is due to mostly aids In Africa today 63% die from infectious diseases Africa, especially sub southern Africa, is mostly affected by infectious diseases compared to the rest of the world $6 billion can provide the basic treatment for HIV, which can solve tuberculosis as well there To make the chemicals in drugs is very cheap This is the annual budget of advertising soda and cigarettes Our priorities are totally mixed up People in Africa receiving treatment for HIV is going up compared to the past Bill & Melinda Gates Foundation: $60 million dollars towards problems such as HIV in Africa David Cameron pledges 40m for polio vaccines at Davos Microbes-Host Equilibrium Microbial diseases are often severe • e.g. Tuberculosis vs. Ebola virus 1.7 billion people worldwide are affected by tuberculosis, in a pathogen perspective, they are everywhere, people can survive with tuberculosis for 30 years or so. It is contagious. It is less aggressive than the Ebola virus Ebola virus is concentrated in a very small part of Africa. It is extremely aggressive. First 90% of people affected are going to be dead in a few days. They have very serious symptoms. The 10% that are not killed are going to be very sick at the time. However, the natural evolution of a microbe operates on its spreading capacity, not
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