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Prevalence and Antimicrobial Resistance of Ureaplasma urealyticum and Mycoplasma hominis in Patients with Genital Tract Infection in Jiangsu, China by Ruixiang Luo, Kang Xun, Lingli Zuo, Feifei Sha, Yun Chen, Nong Yu, Donghua Jin, Yuxian Xie, Meiling He, Fang Liu

Background: The aim of this study was to investigate the infection and antimicrobial resistance of Ureaplasma urealyticum (U. urealyticum) and Mycoplasma hominis (M. hominis) in patients with genital tract diseases in Jiangsu, China.
Methods: A total of 3,321 patients suspected with genital tract infectious diseases were enrolled in this study from September 2017 to September 2020. The Mycoplasma detection and antimicrobial susceptibility were tested using the commercially available Mycoplasma kit.
Results: Among the 3,321 specimens tested, 1,503 (45.3%) were positive for Mycoplasmas, and the proportion of mono-infection of U. urealyticum is highest (79.5%). The overall infection rate has been increasing in the past 3 years. The positive rate in females (68.7%) was higher than in males (25.0%), and the main infection age group was 20 - 39 (81.2%). Besides, U. urealyticum and M. hominis displayed relative lower resistance rates to gatifloxacin, josamycin, minocycline, and doxycycline (6.0%, 6.5%, 3.1%, and 3.2%, respectively). However, the antimicrobial resistance rates to azithromycin, clindamycin, roxithromycin, sparfloxacin, and ofloxacin were relatively high (45.4%, 42.1%, 34.9, 36.0, and 65.5%, respectively). Antimicrobial resistance of U. urealyticum and M. hominis to these 14 drugs have been changing in the past 3 years.
Conclusions: In total, these preliminary data showed the prevalence and antimicrobial resistance status of U. urealyticum and M. hominis in patients suspected with genital tract infectious diseases, which has use for reference on both prevention and treatment of diseases caused by them.

DOI: 10.7754/Clin.Lab.2021.210706