Can the witness's health code be marked in red to testify in court during the appeal?

According to relevant information, the query shows: Yes. As of May 22nd, 2022, the health code became red team. In order to ensure that the litigation service is not closed, the undertaker can open a green channel for both parties to resolve disputes under the epidemic situation. Participate in the online trial. Therefore, during the appeal, the witness's health code is marked in red, so he can testify in court online.