The head of the lab, the man with the vial and various Night Court employees alternately call the substance a virus and a bacteria. They are 2 different organisms and treated different ways.
When the plane is shown flying through the storm, the lettering on the fuselage is backwards, indicating the footage has been reversed.
The MC of the Greater Buffalo area pageant summons Miss Mahopac. Buffalo and Mahopac are over 250 miles apart.
After the people who were exposed to the possibly toxic substance are quarantined, they somehow are supplied with pizza and sleeping bags. In a real quarantine situation, the person or persons that entered the area with these items would also be quarantined, but nobody joins the original group.