The invention relates to novel Methylobacterium species that are capable of degrading nitroaromatic and nitramine compounds. The access control system utilizes an isolation patch panel which is provided with circuitry to prevent voltage transients from damaging access control equipment, while also enabling the access control equipment to be wired with standard Ethernet cabling. The spectra are gain shifted to a common calibration, summed for respective groups of NaI detectors, and nitrogen detection analysis performed on the summed spectra for each group. Conditions of deficiencies of Mannan-Binding Lectin are associated with increased susceptibility to infections.