This would not be the first time, if it happened, that a vaccine that looked good in initial safety actually made people worse. There was the history… - Anthony Fauci

As experience has taught us more often than not the thing that is gonna hit us is something that we did not anticipate. Just the way we didn't anticipate , we didn't think there would be an Ebola that would hit cities. [...] If you develop an understanding of the commonalities of those, you can respond more rapidly.

Even before we knew it was a coronavirus, I said it certainly sounds like a coronavirus-SARS type thing. As soon as it was identified, I called a meeting of top-level people and said, 'Let's start working on a vaccine right now.'

This is material that is quite formidable, that is infecting people with inhalation anthrax, infecting them in the absence of direct contact. You can call it whatever you want to call it with regard to grade and size or weaponized or not weaponized. The fact is, it is acting like a highly efficient bioterrorist agent.