Many Darwinists present antibiotic resistance and antiviral drug resistance as evidence for Darwinian evolution. As we mentioned in our previous article on Is Darwin’s Theory of evolution a scientific fact?, we do accept that evolution does happen and that natural selection acting on random mutation is a an actual scientific phenomenon. The question that was raised was, does it account for all complexity of life and common ancestry.
Such is the case with this evidence here as well. Antibiotic resistance and antiviral drug resistance are real phenomenon; however they have no real bearing on the actual ability of evolutionary processes to create new genetic information, and do not give real clues as to the origin of species in the first place. They are an example of microevolution, and have involved the origination of zero to miniscule amounts of information in the genome.
Casey Luskin, Research Coordinator at the Centre for Science and Culture, Discovery Institute, analyses the evidence in his article The Implications of Antibiotic and Antiviral Drug Resistance for the Power of Darwinian Evolution and reached the following conclusion
The alleged power of evolution through mutation and natural selection is not established by claiming antibiotic or antiviral drug resistance because no new information-rich (or even information-poor) functions appear in the cell and the changes typically involve nothing more than functionally-moot minor structural changes in the cells. In fact, the fitness cost associated with antibiotic resistance indicates that functionality these organisms is not very plastic, as resistant strains are less efficient at performing key cellular functions than the non-resistant strains. If nothing else, this indicates that this form of resistance does NOT include advantageous mutations that create new functions or add to the vitality or vivacity of a cell. When trying to prove macroevolution, or that Darwinian evolution can create new cellular functions, citing to antibiotic and antiviral drug resistance is futile.
Thus we conclude that the antibiotic resistance and antiviral drug resistance provide no evidence for macro-evolution.