(Natural News) Coronaviruses are pervasive throughout the human population and their symptoms typically manifest as the common cold. The four most popular coronaviruses identified include 229E (alpha coronavirus), NL63 (alpha coronavirus), OC43 (beta coronavirus), and HKU1 (beta coronavirus). More potent coronaviruses have emerged in recent years. MERS-CoV I is a beta coronavirus that causes Middle […]