The ban was actually lifted by the Obama administration, _11 days prior_ to Trump taking office.
Source: https://obamawhitehouse.archives.gov/blog/2017/01/09/recomme...
JANUARY 9, 2017 AT 9:06 Recommended Policy Guidance for Potential Pandemic Pathogen Care and Oversight
"Adoption of these recommendations will satisfy the requirements for lifting the current moratorium on certain life sciences research that could enhance a pathogen’s virulence and/or transmissibility to produce a potential pandemic pathogen (an enhanced PPP)."