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Chinese Journal of Antituberculosis ›› 2021, Vol. 43 ›› Issue (5): 501-505.doi: 10.3969/j.issn.1000-6621.2021.05.016

• Original Articles • Previous Articles     Next Articles

Bacteria distribution and drug resistance of co-infection patients of human immunodeficiency virus and nontuberculous mycobacteria in Chongqing

LIU Min, LI Ming-jun, YU Qing, HE Kun, WU Yu-shan, YANG Hong-hong, LI Tong-xin()   

  1. Department of Infectious Disease,Chongqing Public Health Medical Center, Chongqing 400036,China
  • Received:2021-01-19 Online:2021-05-10 Published:2021-04-30
  • Contact: LI Tong-xin E-mail:cqltxin@163.com

Abstract:

Objective To investigate the bacterial distribution and drug resistance of human immunodeficiency virus (HIV) and nontuberculous mycobacteria (NTM) co-infected patients in Chongqing. Methods The clinical data of 44 patients with HIV and NTM co-infection admitted to Chongqing Public Health Medical Center from June 2019 to June 2020 were retrospectively analyzed. The clinical characteristics of the patients, the bacteria distribution and the results of drug susceptibility test (DST) of NTM were analyzed. Results A total of eight species of NTM strains were identified in 44 patients. Mycobacterium avium accounted for 34.1% (15/44), Mycobacterium intracellular accounted for 20.4% (9/44), Mycobacterium for tuitum/suis and Mycobacterium Kansas accounted for 11.4% (5/44) respectively, Mycobacterium cheloni abscess subgroup and Mycobacterium gordonii accounted for 6.8% (3/44) respectively, Mycobacterium surga and Mycobacterium chrysogenes accounted for 2.3% (1/44) respectively, and the NTM strains in two patients (4.5%) could not be identified.The overall resistance rates to isoniazid, pasiniazide, azithromycin and rifampicin were 81.8% (36/44), 75.0% (21/28), 61.9% (13/21) and 45.5% (20/44), respectively. The relatively low resistance rates were rifabutin (6.8%, 3/44) and clarithromycin (11.4%, 5/44). Conclusion The incidence of NTM infection in HIV infected people in Chongqing is higher. Mycobacterium avium was the most common. The overall resistance rate of NTM was high, but the resistance rate to rifabutin and clarithromycin was relatively low.

Key words: HIV infection, Mycobacteria, atypical, Microbial susceptibility test, Drug resistance, bacterial