As the Ebola epidemic draws gradually to its close, how should the world arm itself against the risks of insurgent infections?

 THE ECONOMIST                                                                                        March 21,  2015

...Liberia is close to declaring itself free of the virus and infection rates are falling in Sierra Leone. But it is not over yet, for in Guinea Ebola still kills dozens of people a week. Moreover, the aftermath will harm the three countries’ economies, costing at least $1.6 billion in forgone economic growth this year, according to the World Bank.  

Though it could have been a lot worse (at the height of the crisis some epidemiologists were talking of hundreds of thousands of deaths) it might also have been a lot better. Previous Ebola outbreaks killed dozens or hundreds. The whole episode therefore suggests that the world’s defences against epidemics, though they have been strengthened since the rapid spread of SARS in 2002 and 2003 demonstrated their weaknesses, could do with reinforcing still further.

The prime directive of epidemic prevention is early detection. That means good surveillance. Unfortunately, only 64 of the 194 members of the World Health Organisation (WHO) have surveillance procedures, laboratories and data-management capabilities good enough to fulfil their obligations under an agreement known as the International Health Regulations. This, though, is changing....

...The temptation is to put money into high-profile areas like vaccines and drugs. It may, though, be more useful to concentrate on diagnosis, because this can stop people spreading a disease. The science of diagnostic testing is advancing rapidly, making it easier to come up quickly with a test for a new pathogen.

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http://www.economist.com/news/science-and-technology/21646714-ebola-epidemic-draws-gradually-its-close-how-should-world-arm