Both of these countries talk about borders with at least probably the most affected countries, which include Sierra Leone, Liberia and Guinea, so it is only natural for them to pay close attention to who is crossing their borders. Flights is also restricted in various other African countries, including in South Africa, Kenya and Zambia, none of which are located close to the hot zone. Kenya Airways has reportedly halted flying to all or any of the affected countries, and in countries where incoming flights are allowed still, such as Zimbabwe, all incoming travelers must first be monitored for 21 days to root out the chance that Ebola symptoms will establish. ‘The Nigerian federal government, seeing the epidemic growing in their neighbors in the last several months before the index case found its way to July, responded quickly by setting up an intensive contact tracing program to identify and follow up all potential cases,’ stated Adam Levine, a crisis medicine professor at Brown University, to Mashable.com about the problem in Nigeria.Perstans microfilariae, with a standard deviation of 2 on a square-root transformation level and a dropout rate of 20 percent. Secondary end points included clearance of microfilaremia, further reduced amount of M. Owing to unforeseen problems with the specificity of the ICT, five subjects who were negative for W. Bancrofti microfilariae were originally categorized as positive for both M. Perstans and W. Bancrofti ; these subjects had been reclassified as positive for M.