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Predictors of hospital-acquired bacterial and fungal superinfections in COVID-19: a prospective observational study.


ABSTRACT:

Background

Bacterial and fungal superinfections may complicate the course of hospitalized patients with COVID-19.

Objectives

To identify predictors of superinfections in COVID-19.

Methods

Prospective, observational study including patients with COVID-19 consecutively admitted to the University Hospital of Pisa, Italy, between 4 March and 30 April 2020. Clinical data and outcomes were registered. Superinfection was defined as a bacterial or fungal infection that occurred ≥48 h after hospital admission. A multivariate analysis was performed to identify factors independently associated with superinfections.

Results

Overall, 315 patients with COVID-19 were hospitalized and 109 episodes of superinfections were documented in 69 (21.9%) patients. The median time from admission to superinfection was 19 days (range 11-29.75). Superinfections were caused by Enterobacterales (44.9%), non-fermenting Gram-negative bacilli (15.6%), Gram-positive bacteria (15.6%) and fungi (5.5%). Polymicrobial infections accounted for 18.3%. Predictors of superinfections were: intestinal colonization by carbapenem-resistant Enterobacterales (OR 16.03, 95% CI 6.5-39.5, P < 0.001); invasive mechanical ventilation (OR 5.6, 95% CI 2.4-13.1, P < 0.001); immunomodulatory agents (tocilizumab/baricitinib) (OR 5.09, 95% CI 2.2-11.8, P < 0.001); C-reactive protein on admission >7 mg/dl (OR 3.59, 95% CI 1.7-7.7, P = 0.001); and previous treatment with piperacillin/tazobactam (OR 2.85, 95% CI 1.1-7.2, P = 0.028). Length of hospital stay was longer in patients who developed superinfections ompared with those who did not (30 versus 11 days, P < 0.001), while mortality rates were similar (18.8% versus 23.2%, P = 0.445).

Conclusions

The risk of bacterial and fungal superinfections in COVID-19 is consistent. Patients who need empiric broad-spectrum antibiotics and immunomodulant drugs should be carefully selected. Infection control rules must be reinforced.

SUBMITTER: Falcone M 

PROVIDER: S-EPMC7799007 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Publications

Predictors of hospital-acquired bacterial and fungal superinfections in COVID-19: a prospective observational study.

Falcone Marco M   Tiseo Giusy G   Giordano Cesira C   Leonildi Alessandro A   Menichini Melissa M   Vecchione Alessandra A   Pistello Mauro M   Guarracino Fabio F   Ghiadoni Lorenzo L   Forfori Francesco F   Barnini Simona S   Menichetti Francesco F  

The Journal of antimicrobial chemotherapy 20210301 4


<h4>Background</h4>Bacterial and fungal superinfections may complicate the course of hospitalized patients with COVID-19.<h4>Objectives</h4>To identify predictors of superinfections in COVID-19.<h4>Methods</h4>Prospective, observational study including patients with COVID-19 consecutively admitted to the University Hospital of Pisa, Italy, between 4 March and 30 April 2020. Clinical data and outcomes were registered. Superinfection was defined as a bacterial or fungal infection that occurred ≥48  ...[more]

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