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Starting Monday, each traveler from Liberia, Sierra Leone and Guinea will be given a “care kit” that includes a thermometer and instructions for how to use it as well as a description of possible Ebola symptoms and what to do if any of them develop. Such travelers, who most likely will include health-care workers assisting in the Ebola fight and journalists, will be required to take their temperatures twice daily for 21 days and report the result to the state health department where they reside. “These new measure will give an additional level of safety,” said Dr. Tom Frieden, CDC director in a national media briefing. “We have to keep our guard up.” About 150 people are believed to travel to the U.S. daily from the three West African countries. The travelers already are having their temperatures taken when they leave Africa and when they arrive at certain U.S. airports.
While the 21 day quarantine value currently used may have arose from reasonable interpretation of early outbreak data, this work suggests a reconsideration is in order and that 21 days may not be sufficiently protective to public health. Further, outbreaks such as the current West Africa EBOV are presenting an opportunity for careful collection of data sufficient to revise and update (perhaps in an adaptive fashion) such recommendations.
A 21 day period for quarantine may result in the release of individuals with a 0.2 – 12% risk of release prior to full opportunity for the incubation to proceed.
originally posted by: ~Lucidity
Care kit. Geez.
Watching CNN on the Canadian attack, and noticed that they cut off the presser as the next reporter asked a question about this. Guess ebola's been knocked out of the number 1 slot.
"While the 21 day quarantine value currently used may have arose from reasonable interpretation of early outbreak data, this work suggests a reconsideration is in order and that 21 days may not be sufficiently protective to public health," he wrote. According to his calculations based on more recent data, Haas said that the risk was that as few as one person in 500 contacts exposed to the virus and as many as one in eight, could develop Ebola symptoms after the 21 days.
Recent studies conducted in West Africa have demonstrated that 95% of confirmed cases have an incubation period in the range of 1 to 21 days; 98% have an incubation period that falls within the 1 to 42 day interval. WHO is therefore confident that detection of no new cases, with active surveillance in place, throughout this 42-day period means that an Ebola outbreak is indeed over.