When a mediation is provided by a mediator who is certified pursuant to guidelines promulgated by the Judicial Council of Virginia, or who is trained and serves as a mediator through the statewide mediation program established pursuant to § 2.2-1202.1, then that mediator, mediation programs for which that mediator is providing services, and a mediator co-mediating with that mediator shall be immune from civil liability for, or resulting from, any act or omission done or made while engaged in efforts to assist or conduct a mediation, unless the act or omission was made or done in bad faith, with malicious intent or in a manner exhibiting a willful, wanton disregard of the rights, safety or property of another. This language is not intended to abrogate any other immunity that may be applicable to a mediator.