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Improved techniques, for instance, allow segments of DNA to be amplified rapidly, so viruses can be identified quickly. The cost of full genetic sequencing continues to fall. And countries’ surveillance efforts are now better co-ordinated. A model of co-operation can be seen north of Bangkok, where Thailand’s health ministry includes a National Influenza Centre. As one of Air Max 2009 High Heels WHO’s designated regional laboratories, it tests samples from Jordan 11 High Heels whole of South-East Asia. This laboratory has also been supported for Nike Dunk SB Heels High past decade by America’s Centres for Disease Control and Prevention (CDC), an organisation well equipped to identify new medical threats. (It was tiffany bangles CDC that spotted AIDS.)

Many countries are better equipped than before to respond to an outbreak. America leads tiffany bracelets way. The authorities have stockpiled 68m courses of antiviral drugs, 18m respirators and 31m face masks, and are investing in research to create better ones. The Biomedical Advanced Research and Development Authority (BARDA), an American government agency, contracts with companies to develop new ways to counteract biological threats. It has 130 products in development, including 45 for influenza.

The world’s biggest cities, often with aid from national governments, have honed their strategies, too. Shanghai watches for 15 categories of infectious disease at more than 5,700 sentinel sites. It has several emergency plans, tailored for outbreaks of different intensities. New York collects data from hospitals, laboratories and even pharmacies, to look for signs of new infections. The city cannot forcibly vaccinate its citizens, but it can order tiffany chains unvaccinated to stay at home.