ArticleRevista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia2025
Post-COVID-19 tuberculosis in southeastern Spain: incidence, risk factors and the role of latent tuberculosis infection screening.
Article in Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionThe incidence of coinfections and superinfections following SARS-CoV-2 pneumonia has garnered increasing attention, with complications arising from various pathogens, including viruses, bacteria, and fungi. Nevertheless, the relationship between COVID-19 and tuberculosis (TB) is not fully understood. This study investigates the incidence and risk factors for post-COVID-19 pulmonary TB in a low TB prevalence area in southeastern Spain, alongside the influence of COVID-19 on indeterminate results in the Quantiferon-TB Gold Plus (QFT-Plus) test and its prognostic role. MATERIAL AND
methodsA retrospective cohort study was conducted involving 475 hospitalized COVID-19 from March 2020 to March 2022, all of them with a QFT-Plus performed.
resultsThe study found three cases of pulmonary TB in the post-COVID-19 period, yielding an incidence density of 3.56 cases per 1000 patient-years, all associated with chronic systemic corticosteroid therapy. Notably, the percentage of indeterminate QFT-Plus results during COVID-19 was significantly higher than when it was performed before the disease (16.82% vs. 3.37%). Patients with indeterminate results exhibited elevated inflammatory markers and a greater need for invasive mechanical ventilation, correlating with more severe disease, although without statistical significance.
conclusionsThe findings suggest that prolonged systemic corticosteroid therapy is a common risk factor for pulmonary TB development and that systematic LTBI screening may not be necessary for all COVID-19 patients unless prolonged corticosteroid treatment is foreseen. This study highlights the need for further research to clarify the relationship between COVID-19 and post-COVID-19 pulmonary TB, as well as the prognostic implications of QFT-Plus results.
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