Friday, October 17, 2014

Why Travel Ban Would Only Make Ebola Worse - Julia Belluz in Vox

Public health experts unanimously agree: sealing borders will not stop Ebola spread and will only exacerbate the crisis in West Africa — and heighten the risk of a global pandemic.

The fear of spread is understandable, especially as an Ebola outbreak appears poised to grow closer to home. America recently recorded its first Ebola death with the passing of a Liberian visitor Thomas Duncan, and the CDC announced the first-ever cases of Ebola transmission to two of Duncan's nurses.

As Ebola panic peaks, conspiracy theories are spreading fast. So now is the time when we need to check our irrational reactions to this horrible crisis and avoid policies that will divert scarce resources from actual remedies. And we know from past experience that airport screening and travel bans are more about quelling the public's fears and political expediency than offering any real boost to public health security.

Public health experts unanimously agree: sealing borders will not stop Ebola spread and will only exacerbate the crisis in West Africa — and heighten the risk of a global pandemic.

There are three reasons why it's a crazy idea. The first is that it just won't work to stop the virus. The weeks following 9/11, when people stopped getting on planes, provided influenza researchers with a natural experiment in what a travel ban might do to viral spread. They found it didn't stop influenza from moving, it only delayed flu season by a couple of weeks.


In CDC Director Tom Freiden's words, "Even when governments restrict travel and trade, people in affected countries still find a way to move and it is even harder to track them systematically." In other words, determined people will find a way to cross borders anyway, but unlike at airports, we can't track their movements.

The second reason a travel ban won't work is that it would actually make stopping the outbreak in West Africa more difficult. Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases,said, "To completely seal off and don't let planes in or out of the West African countries involved, then you could paradoxically make things much worse in the sense that you can't get supplies in, you can't get help in, you can't get the kinds of things in there that we need to contain the epidemic."

The third reason closing borders is a bad idea is that it will devastate the economies of West Africa and further destroy the limited health systems there. The World Bank already estimates this outbreak could cost West African economies up to $33 billion. That's a lot for any country, but especially when you're talking about some of the world's poorest. World Health Organization director Margaret Chan reminded us that 90 percent of any outbreak's economic costs "come from irrational and disorganized efforts of the public to avoid infection."

The full article is available here