the effect of 23- valent pneumococcal polysaccharide vaccine on pharyngeal colonization in healthy children under 5 years of age
DOI:
https://doi.org/10.32007/jfacmedbagdad.4931370Keywords:
pneumococci, 23- valent pneumococci polysaccharide vaccineAbstract
Background: streptococcal pneumonia is one of the most common pathogens that cause otolaryngological disease.