The expression levels of Nr4a2, Ace2, and Tmprss2 proteins, as well as the infection level of Omicron BA.5 pseudovirus, were significantly higher in the lung and testis tissues of BaP‐treated hamsters compared to dimethyl sulfoxide (DMSO)‐control hamsters (Figure7 and Figure S11, Supporting Information). This evidence concerns the gene ACE2 and infection.