ATCC offers a variety of clinically relevant nucleic acid standards associated with respiratory infections. Some of our newest quantitative products include synthetic Human Bocavirus DNA (ATCC VR-3251SD), synthetic MERS-CoV RNA (ATCC VR-3248SD), synthetic Human Metapneumovirus RNA (ATCC VR-3250SD) and genomic RNA from Enterovirus D68 strains US/MO/14-18947 (ATCC VR-1823D) and US/KY/14-18953 (ATCC VR-1825D).