The following article discusses SHV and TEM β-Lactamases. It is essential to understand the diversity of resistance genes to assure treatment is directed accordingly [1]


  1. F. Chang, L.K. Siu, C. Fung, M. Huang, and M. Ho, "Diversity of SHV and TEM β-Lactamases in Klebsiella pneumoniae: Gene Evolution in Northern Taiwan and Two Novel β-Lactamases, SHV-25 and SHV-26", Antimicrobial Agents and Chemotherapy, vol. 45, pp. 2407-2413, 2001. http://dx.doi.org/10.1128/AAC.45.9.2407-2413.2001