Ebola update
There is a great deal of news today about Ebola, which has now spread to Senegal, the fifth country in West Africa to be affected by the outbreak. The nation has tried to protect itself by banning flights from affected countries, but this is unlikely to be effective given that most people cross the border by ground transport. In Liberia the government has lifted the quarantine on the slum community of West Point, after widespread media reports that the quarantine was being flouted by people who bribed police to leave. At this time, quarantines do not seem to be effective in dense urban environments in developing countries; they are difficult to enforce, and the social costs are high. …