By Alex Lang New York (Knewz) — The number of American concerned about catching COVID-19 has hit lows not seen in more than a year, as fewer are saying they spend time isolating. A recent Gallup survey found that 28 percent said they are worried about catching COVID. That is the lowest the figure has been since June 2021, when it sat at 14 percent. The figure saw an increase when Delta and Omicron variants arrived on the scene. The percentage has been at 40 percent or below since the summer of 2021. In the last few months, the figure has seen a constant drop. Many Americans have returned to pr…