Molecular detection of oropharyngeal Kingella kingae in children and its correlation with osteoarticular infections and oncology diseases in Basrah, Iraq
Ibtehaj AA. Alsheikh, Nidham M. Jamalludeen, Ali A. Al Iedan

Kingella Kingae is gram negative bacterium. It can be a serious etiology of invasive infections detected by molecular technology. The aim of this study was to detect the prevalence of oropharyngeal Kingella Kingae carriage during the first 5 years of life, association of asymptomatic carriage with cases of osteoarticular infections (OAI), and to compare the prevalence of Kingella Kingae in normal and immune compromised children. Children were divided into: 61 normal, 18 OAI, and 32 Oncology patients. Throat swab was taken from 111 children that was included in the study, and 18 joint fluid samples from OAI children. All samples submitted to culture and real time PCR targeting rtxA and rtxB gene. Prevalence of Kingella Kingae was 2.7% in all children, and according to disease group: 1/61 (1.6%) were detected in the normal group, while 2/32 (6.3%) was the prevalence in the oncology group, and none were detected in the OAI group. In conclusion, Kingella kingae was detected in Iraqi children population, and that was the first report in this area regarding this microorganism. Kingella kingae was best detected by real-time PCR targeting RTX toxin gene (A and B).

Full Text: PDF     DOI: 10.15640/aijb.v6n1a2