Third, if a third mammal acts as a true intermediate host, it remains to be clarified how it interacts with different species, including humans, bats, and pangolins.
Virusi vya CoV-HKU4 vya popo na MERS-CoV hutumia vipokezi sawa vya mbebaji, dipeptidyl peptidase 4 (DPP4), kwa ajili ya kuingia kwa virusi.