Apparently the UK Parliament keeps a gaggle of PhDs on-hand to write 4-page briefs for them about the latest trends in science and technology. There's also a fair amount relevant to both national and global health. Since there are so many, I'd suggest reading the ones on topics in which you are interested-- although since they're only four pages, they tend to go by fairly quickly.
POSTs related to national health (in the UK)
Ethnicity and Health
POSTs related to developing countries
HIV/AIDS in developing countries
Fighting Diseases of Developing Countries
Access to Medicines in the Developing World
Tackling Malaria in Developing Countries
Food Security in Developing Countries
Adapting to Climate Change in Developing Countries
Full List of publications on "Science, Technology, and the Developing World"
Full List of publications on biological sciences and health