What a vast topic! You'll probably have to read lots in order to choose a specific topic that can be adequately written about.
Start here:
http://www.america.gov/st/scitech-english/2010/August/20100810155143lcnirellep5.547732e-02.html
and here: http://www.google.com/#hl=en&source=hp&q=health+public+worldwide&aq=f&aqi=g9g-m1&aql=&oq=&gs_rfai=Cjzs4L6V0TOuaEZXcygSRiYEGAAAAqgQFT9AmbmU&pbx=1&fp=93c3c78db929eee0
(Start with the sixth linked article.)
What is happening in the world today that can drastically affect public health?
Not really sure where to begin on this one. If anyone could give me a neuron jump start, it would be greatly appreciated. thanks in advance, t.j.
2 answers
I think the most recent world event is the oil spills. Global warming is another topic. Another big issue is pesticide use and antibiotic use in healthy animals.