TAAR6 and viral infectious disease: From the above, these results illustrated that the HS receptor is required for viral infection of WT-CHO cells by O/Tibet/CHA/6/99tc and the HS-binding of rHN, rHN/FJ9-VP0 and rHN/TAR6-VP0Q2080L may not be sufficient to establish an efficient infection in WT-CHO cells.