As Covid-19 cases rise globally, many are anxious for a vaccine to hit the market. Though Moderna and Pfizer are preparing to release their Covid-19 vaccines, there is still confusion as to when the vaccine will be available to the public, how they will be distributed and if they are safe to take. Four health experts discussed these questions Tuesday at a Business Journal event on what might happen next for the vaccines. There are more similarities between the Moderna and Pfizer vaccines than…