Character mistake: During the interview with Dr. Sanjay Gupta, Alan Krumwiede incorrectly describes what an R naught of 2 means. He claims on Day 1 there were 2 people infected, then 4, then 16, then 256... This is raising each number to the 2nd power (squaring each number.) But we learned earlier in the movie from Dr. Erin Mears that the R naught indicates the number of people who will become infected by 1 infected person. So to calculate the spread of the disease, each # of infected should be multiplied by 2, not squared. It should go Day 1 = 2, Day 2 = 4, Day 3 = 8, Day 4 = 16, Day 5 = 32, etc.