Hello and welcome to another program designed to help you learn and improve your American English. I'm Jim Tedder in…
Health experts are warning the world to prepare for a major pandemic. But the experts say they just do not know…
Some bacteria have grown so strong that they cannot be killed with antibiotic drugs. Medical experts call them antibiotic-resistant bacteria. The World…
Researchers say public mistrust of vaccines is causing diseases like measles and yellow fever to spread. The scientists said the…