My aunt recenty required a culture analyzed in the hospital. They took 72 hours to determine whether the culture was MRSA. Doctors began administering antibiotics before the results were returned thinking that if they waited for confirmation it might be too late to fight the infection if it was MRSA.
It turned out to be MRSA so they were right but what if it was something else. This set of circumstances must be repeated thousands of times a day and clearly shows us how important our product is.