Dr. Martin enters a code into a keypad, and the door closes behind her; the man following her then simply opens the door.
When Jack is in the back seat of Tess' car he tells her to "get on I-90 heading south" when in fact I-90 runs east-west.
The characters consistently refer to the "virus" causing the outbreak, even after they have come to the conclusion that the disease is Plague. Plague is caused by a bacterium, not a virus.
In the 21st minute, Dr. Martin removes her mask before leaving the home of the deceased patient zero.
In the ninth minute, the doctors remove their protective equipment (PPEs), then attend the wearing area where many infected people are coughing. If they sense an epidemic/pandemic/plague, they would not remove their PPEs.
In the 25th minute we see many doctors dealing with a highly infectious disease but not wearing masks.