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...World Health Organization (WHO) uses a similar on-the-ground surveillance strategy - a text-mining system of media reports, called the Global Public Health Intelligence Network (GPHIN), designed to suss out mentions of unusual illness. And the CDC has a network of physicians who routinely sample and test patients to see what bugs they have and might be circulating in the community. But these systems have many moving parts, relying on state, local and even community health-care workers to both recognize and report anything out of the ordinary. Once a community doctor sees what he thinks might...
...outbreaks. Real-time warnings would allow authorities to stay well ahead of potential pandemics, prepare local populations with appropriate prevention and treatment, and reduce overall illness and deaths. The Google Flu Trends service, which was launched in the U.S. in collaboration with the Centers for Disease Control and Prevention (CDC), is now working with Mexican officials to track search trends in that country. The goal is to help authorities discern whether and where the disease is spreading, getting worse or starting to subside...
...events like disease and civil unrest. Veratect sources first picked up reports of human respiratory disease at a pig farm in Mexico on April 6; additional reports of a similar illness surfaced on April 16, which is when the company got concerned enough to e-mail officials at the CDC. The CDC was actually already connected to the Veratect news feed (in January, Veratect provided the CDC complimentary access to its system to test its utility) when the company again contacted the health agency's operations staff on April 20, as H1N1 cases began to appear, to reinforce concern over...
Compared with Veratect, Google Flu Trends' metric is somewhat simpler. From 50 million potential search topics, Google engineers narrow down a relevant grouping of flu-related search terms, which they track each fall at the start of the annual flu season. When analyzed side by side with CDC records of confirmed flu cases for the past five flu seasons, Google Flu Trends was 97% to 98% accurate in tracking the disease. And because Google's analysis is in real time, its estimates of cases come about a week or two before those of the CDC. "Each flu season...
Besser: What's really gratifying is to see the incredible work going on at CDC and around the country and to see that the efforts that have been undertaken are paying off and they are paying off in terms of the impact on people's health and lives...