Doctors and scientists around the world have been attempting to find new antibiotics for more than 10,000 bacterial diseases for years. Researchers at University of Copenhagen’s Center of Symbiotic Disease Research (CDDR) have discovered promising results from on a major clinical trial: The researchers found a new antibiotic named PZP-B obtained from the intestine of mice with colitis, a disease for which there is no antibiotic available internationally. According to the study published in the journal Nature Microbiology, the antibiotic led to a 60 percent higher efficacy and a 60 percent lower toxic side effect.