 Chembio Diagnostics NASDAQ:CEMI shares are trading higher after the company announced it received a 28.3 million purchase order from Bio-Manguinhos for its DPP SARS-CoV-2 antigen tests in Brazil. We believe the purchase order validates the investments we made earlier this year in inventory for the DPP SARS-CoV-2 Antigen test and look forward to ramping up production. 