Mixing Biontech and Novavax

No.13571820 ViewReplyOriginalReport
My mom got the first Bioshot unfortunately and I just learned about this protein-based vaxx Novavax that basically has as little risk as, say a Hepatitis vaccine (which is to say literally none). Maybe I can convince her to wait until it's out and get Novavax as her 2nd shot but do you think those can be mixed? I find literally nothing on this.