Oropharyngeal Kingella kingae DNA was identified in 16 of 16 children with proven K. kingae bone and joint infection (BJI) (sensitivity 100%; 95% confidence interval: 79-100) and in 33 of 112 with disproven K. kingae BJI (specificity 71%; 95% confidence interval: 61-79). Due to low specificity, we advocate against oropharyngeal K. kingae DNA testing as a diagnostic tool in children suspected of BJI.
Nielsen et al. (Sun,) studied this question.