NATtrol™ GP (Gastrointestinal Pathogen) External Run Controls* are formulated with purified, intact organisms that have been chemically modified to render them non-infectious and refrigerator stable...
NATtrol™ Influenza External Run Controls (NATFLUA/B-6MC, NATFLUAH1N1-6MC and NATCXVA9-6MC)* are formulated with purified, intact virus particles that have been chemically modified to render them...