Joe Keery's latest single tops the Alternative Airplay chart. By Kevin Rutherford Djo ascends to No. 1 on Billboard’s Alternative Airplay chart, with his single “Basic Being Basic” climbing two places ...

R 0, pronounced “R naught” or “R zero,” is a mathematical term that indicates how contagious an infectious disease is. It’s also referred to as the reproduction number. R 0 of 1 means an infection in ...