Streptococcus pneumoniae serotype distribution and antimicrobial nonsusceptibility trends among adults with pneumonia in the United States, 2009‒2017

•This US study assessed S. pneumoniae (Sp) antimicrobial nonsusceptibility in adults with invasive/noninvasive pneumonia Study period under investigation was 2009-2017.•13-valent conjugate vaccine (PCV13) implementation was followed by reductions in Sp antimicrobial nonsusceptibility.•PCV13 programs can be a tool against the global threat of antimicrobial resistance.