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Talaromyces marneffei is the Persistent Overwhelming Bloodstream Infection Pathogen Among HIV Inpatients in Fujian,
Jinglan Lai1, Yuming Liu2, Hanhui Ye1
1Department of Infectious Diseases, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, People's Republic of China.
Purpose:
This study aimed to investigate the epidemiology and etiological spectrums of BSI in Fujian over the past 6 years in the post antiretroviral treatment (ART) era.
Methods:
A retrospective, observational study was conducted to include positive BSI inpatients with HIV between September 2015 and August 2021 in Mengchao Hepatobiliary Hospital of Fujian Medical University, the largest designated HIV/AIDS care hospital in Fujian, China. Demographic data and laboratory data including gender, age, blood cell counts, biochemistry results, CD4 and CD8 cell counts, HIV-RNA loads, pathogen isolates, procalcitonin (PCT) levels and c-reactive protein (CRP) levels were collected. Continuous variables were expressed as median (range) and Kruskal-Wallis or Mann-Whitney test was used to analyze the differences between groups. Categorical data were expressed as numbers (percentage) and the differences between groups were analyzed by Pearson's chi-squared test.
Results:
In total, 3681 HIV inpatients with blood culture data were included and 683 strains identified from 646 inpatients were further analyzed. The median age of patients was 38 years and male accounted for 86.84%. The pooled prevalence of BSI was 18.55% (12.01%-22.36% during the six-year period). The overall isolated rate of Talaromyces marneffei (TM) in blood culture was 12.42% (8.3%-15.00% during the study period). TM was the persistent dominant BSI pathogen from 2015 to 2021 (accounting for 63.04% to 71.43%), followed by Cryptococcus neoformans (responsible for 10.00% to 20.83%). Compared to patients with other organisms BSI, those with TM BSI were younger and had lower CD4 counts, WBC counts, HB and CRP level, but higher HIVRNA loads.
Conclusion:
BSI is still a major problem in the post ART era in hospitalized patients with HIV/AIDS in Fujian, China. TM is the predominant pathogen. This underlines the importance of an early diagnosis of opportunistic pathogen to avoid BSI in HIV-infected populations with a low immune status.
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