Chembio Diagnostics, Inc. announced that Chuck Caso has been appointed Vice President of Sales and Marketing for North America, effective immediately. In this new role, Mr. Caso will be responsible for all direct and channel sales efforts throughout the region. Mr. Caso brings more than 20 years of diagnostic industry experience to his new role. Previously, he served in various Executive Sales and Marketing roles at leading companies such as Meridian Biosciences, Quest and Danaher.