Stratagene has a strategy for using genes to reach success. The company makes reagents, kits, and other products for gene and protein analysis, gene transfer, protein purification, DNA replication, and other molecular biology applications. It also makes medical diagnostics including allergy testing kits, autoimmune tests that diagnose such disorders as rheumatoid arthritis, and the KOVA urinalysis system. Stratagene sells its products in more than 60 countries; in key markets, the firm uses its own sales force and relies on distributors for other markets. Scientific instrument-maker Agilent acquired Stratagene in 2007.