Don't is a contraction of do not, while doesn't is a contraction of does not, and they both act as auxiliary verbs. In English, don't is used when speaking in the first and second person plural and singular and the third person plural (I, you, we, and they). It can be used to make a negative statement:
cre Carbapenemase-resistant Enterobacteriaceae. A plasmid transferrable beta-lactamase (enzyme) carried by an increasing number of strains of Klebsiella pneumoniae as well as other Enterobacteriaceae.
Updated October 22, 2016. The CRP (C-Reactive Protein) test is a blood test that measures the concentration of a special type of protein produced in the liver. The protein is present during episodes of acute inflammation or infection. In the body, CRP interacts with the complement system, an immunologic defense mechanism.