Exposure to the common cold offers protection against coronavirus, a new study published on Tuesday has found. Building on previous studies testing this hypothesis, researchers from Yale University infected lab-grown human airway tissue with coronavirus and for the first three days viral load in the tissue doubled about every six hours.
Puerto Rico recently removed its testing requirements for fully vaccinated American travelers, aiming to boost travel to the Caribbean island. Now it’s reducing its local restrictions, allowing more freedom to visit restaurants, bars and attractions. Bars have reopened at 50% capacity, while outdoor bars and chinchorros – outdoor food and drink kiosks — have no capacity limit.