Suppressed PEX3, PMP70 and PEX14 immunolabeling in vitro (Knoblach et al., 2021).Suppressed PEX3, PEX11β, PEX5L and PEX14 mRNA levels and decreased PMP70 and PEX14 protein levels in brain tissue from COVID-19 patients versus controls (Roczkowsky et al., 2023).Suppressed Pex3 mRNA and catalase protein in brains from infected hamsters (Roczkowsky et al., 2023). Here, PEX5L is linked to COVID-19.