Do express deliveries from Wuhan need to be rejected?

No. No need to reject normal express deliveries.

Although the virus can survive for a certain period of time after leaving the host, the enveloped virus usually does not survive more than a few hours. Further, "survival" does not mean it could infect people. A few virus particles cannot cause infection. Only when virus activity and concentration reach certain levels can infection happen.

Opening windows to ventilate rooms could prevent influenza, as this decreases viral concentration. The express delivery boxes have been entirely ventilated, and could not transmit the virus.