In February 2022, Dr. Li-Meng warned the CCP was using gain-of-function to develop Lassa fever, is an acute viral hemorrhagic fever.<ref>https://clarion.causeaction.com/2022/02/12/bombshell-dr-li-meng-yan-reveals-ccp-spreading-hemorrhagic-fever-bioweapon-via-olympics-and-she-shares-the-cure/,/ref>