Chembio Diagnostic Systems Inc. manufactures and distributes in-vitro diagnostic tests. The company is currently focused on next generation diagnostics for multiplex HIV-syphilis combination testing and its fever disease portfolio including single and multiplex tests for Zika, chikungunya and dengue. It has products on the market in over 40 countries primarily for the rapid and early detection of HIV and syphilis. The company was founded in 1985 and is based in Medford, New York.