MEDFORD, NY -- (MARKET WIRE) -- 12/29/2005 -- Chembio Diagnostics Inc. (OTC BB: CEMI) received purchase orders during the fourth quarter from the Brazilian government totaling $690,000, all related to the Company's rapid HIV tests and technologies. This order, when combined with orders received from the Brazilian government earlier this year, results in a 43% increase in purchase orders received from this customer in 2005 as compared with 2004. Chembio intends to complete shipment of all of the items purchased by the end of this month.
