This is a $512,590.94 federal contract award by the Department of Health and Human Services Centers for Disease Control and Prevention (CDC) to the University of Alabama at Birmingham (UAB), a non-profit educational institution. The contract, titled BAA 2017, is a definitive, cost-no-fee contract with a completion date of April 30, 2019. The purpose is to obtain and store clinical diagnostic specimens positive for Mycoplasma pneumoniae (Mp) from a broad geographic area using molecular methods, so they can be tested at UAB for macrolide resistance mutations and cultured for phenotypic antibiotic susceptibility testing and genotyping. This work aims to improve understanding of the epidemiology of macrolide-resistant M. pneumoniae (MRMp) in the United States. Seattle Children's Research Institute is a subcontractor on the award, providing specimen analysis services. This contract does not have a set-aside designation.