> Early on, Fouchier told Science that he had created “probably one of the most dangerous viruses you can make.” But after controversy broke out, as the science communicator Peter Sandman has written, Fouchier and his supporters shifted to downplaying the danger. In early 2013, flu scientists ended their voluntary pause, arguing that when the research was done at enhanced biosafety level 3, or BSL3+, the benefits outweighed the risks. Kawaoka, who was normally the more taciturn of the two, hosted journalists in his lab, where he explained his safety procedures. “The influenza virus is sensitive to detergent,” he reportedly said while explaining the process of showering out. “They die.” A biosafety staffer at the University of Wisconsin got up before a university audience to dispel what she called myths about lab oversight. The address was broadcast on local television.
> Then, months later, Kawaoka’s lab saw two accidents involving lab-generated flu viruses, just one week apart.
> The accidents, a spill and a needle prick, carried a low risk of infection. Flu viruses are typically transferred through respiratory droplets, not skin contact or injection. Nonetheless, in letters obtained by The Intercept, staff at a funding agency accused the university of shirking biosafety precautions that Kawaoka had promised to adopt. They also demanded changes to the University of Wisconsin–Madison’s protocol for accidental lab exposures. Of particular concern was a plan to quarantine all researchers exposed to modified H5N1 at home, even if they were at high risk of infection — an approach that the funding agency administrators found so alarming that they threatened to end the lab’s grant unless the university changed course.