Virologists Lisa Oestereich (R) and Toni Rieger work in the new Biological Security Level 4 laboratory of the Bernhard Nocht Institute for Tropical Medicine (BNI) in Hamburg, Germany, on January 25, 2013. Christian Charisius/picture alliance via Getty Images There are 59 biosafety level 4 labs (BSL-4) in the world, but only a few scored high on safety.…

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