Dynamic changes in otopathogens colonizing the nasopharynx and causing acute otitis media in children after 13‑valent (PCV13) pneumococcal conjugate vaccination during 2015–2019
Dynamic changes in otopathogens colonizing the nasopharynx and causing acute otitis media in children after 13‑valent (PCV13) pneumococcal conjugate vaccination during 2015–2019