FILE - Illustration of syringe seen with American flag in the background. (Photo illustration by Jakub Porzycki/NurPhoto via Getty Images)LOS ANGELES - Even with rapid developments being made on a coronavirus vaccine, many infectious disease experts believe that it could be as long as a year until one is available to the public after the vaccine is approved — and even longer until the world returns to relative normalcy.InCrowd, a medical research company, surveyed 100 infectious disease specialists between June 26 and July 6 on their thoughts and beliefs about the COVID-19 crisis.