The histamine receptor H1 acts as an alternative receptor for SARS-CoV-2 | mBiojournals.asm.org In addition to human angiotensin-converting enzyme 2, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can utilize alternative cofactors to facilitate viral entry. In this study, we discovered that histamine receptor H1 (HRH1) not only ...