Duke Medicine. "New artificial protein mimics part of HIV outer coat." ScienceDaily. ScienceDaily, 22 October 2013. <www.sciencedaily.com / releases / 2013 / 10 / 131022170651.htm>.

The outer coat of the antibiotic-resistant bacterium Clostridium difficile has a structure similar to chain mail that stops drugs and immune system cells from killing it By Carissa Wong 25 ...