TMPRSS2 and infection: Like NCOA7 (Fig 4A), BafA1 (Fig 4B), E64d (Fig 4C) or Niclosamide (Fig 4D) treatment potently inhibited infection with Spike pseudotype in the absence of TMPRSS2, however, TMPRSS2 overexpression attenuated the inhibitory effects of each of these inhibitors.