Background: Since 2019, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV- 2) pandemic (COVID-19) has caused millions of deaths worldwide and is the second most serious pandemic after the Spanish flu. Despite SARS-CoV-2 infection having a dominant effect on morbidity and life-threatening outcomes, the role of bacterial co-infection in patients with COVID- 19 is poorly understood. The present study aimed to verify the existence of bacterial co-infections and their possible role as cofactors worsening COVID-19-related clinical manifestations. Methods: All patients with suspected SARS-CoV-infection, hospitalised in COVID-19 wards at the Sant’Anna University Hospital of Ferrara, were retrospectively included in this single-centre study and their specific bacterial serologies were assessed. Univariate and logistic regression analyses were performed. Results: A total of 1204 individual records were retrieved. Among them, 959 were excluded because of a negative nasopharyngeal swab or missing data; of the eligible 245 patients, 51 were co-infected. Compared to patients with SARS-CoV-2 infection alone, those with Chlamydia pneumoniae or Mycoplasma pneumoniae co-infections had worse respiratory/radiological features and more intensive care unit admissions. However, the co-infection did not result in a higher mortality rate. Conclusions: The present study, comparing clinical, laboratory and radiological findings between patients with COVID-19 vs. those with co-infections (C. pneumoniae or M. pneumoniae) showed that, on admission, these features were worse in co-infected patients, although the mortality rate did not differ between the two groups.

Role of Intracellular Pulmonary Pathogens During SARS-CoV-2 Infection in the First Pandemic Wave of COVID-19: Clinical and Prognostic Significance in a Case Series of 1200 Patients

Guarino Matteo
Co-primo
Writing – Original Draft Preparation
;
Perna Benedetta
Co-primo
Software
;
Spampinato Domenico
Membro del Collaboration Group
;
Manza Francesca
Membro del Collaboration Group
;
Pretula Adriana
Membro del Collaboration Group
;
Grilli Anastasio
Membro del Collaboration Group
;
Maritati Martina
Membro del Collaboration Group
;
Caio Giacomo.
Membro del Collaboration Group
;
Carnevale Aldo
Investigation
;
Flacco Maria Elena
Methodology
;
De Giorgio Roberto
Penultimo
Writing – Review & Editing
;
Contini Carlo
Ultimo
Writing – Review & Editing
2022

Abstract

Background: Since 2019, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV- 2) pandemic (COVID-19) has caused millions of deaths worldwide and is the second most serious pandemic after the Spanish flu. Despite SARS-CoV-2 infection having a dominant effect on morbidity and life-threatening outcomes, the role of bacterial co-infection in patients with COVID- 19 is poorly understood. The present study aimed to verify the existence of bacterial co-infections and their possible role as cofactors worsening COVID-19-related clinical manifestations. Methods: All patients with suspected SARS-CoV-infection, hospitalised in COVID-19 wards at the Sant’Anna University Hospital of Ferrara, were retrospectively included in this single-centre study and their specific bacterial serologies were assessed. Univariate and logistic regression analyses were performed. Results: A total of 1204 individual records were retrieved. Among them, 959 were excluded because of a negative nasopharyngeal swab or missing data; of the eligible 245 patients, 51 were co-infected. Compared to patients with SARS-CoV-2 infection alone, those with Chlamydia pneumoniae or Mycoplasma pneumoniae co-infections had worse respiratory/radiological features and more intensive care unit admissions. However, the co-infection did not result in a higher mortality rate. Conclusions: The present study, comparing clinical, laboratory and radiological findings between patients with COVID-19 vs. those with co-infections (C. pneumoniae or M. pneumoniae) showed that, on admission, these features were worse in co-infected patients, although the mortality rate did not differ between the two groups.
Guarino, Matteo; Perna, Benedetta; Cuoghi, Francesca; Spampinato, Domenico; Cesaro Alice, Eleonora; Manza, Francesca; Pretula, Adriana; Grilli, Anastasio; Maritati, Martina; Caio, Giacomo.; Carnevale, Aldo; Flacco, Maria Elena; DE GIORGIO, Roberto; Contini, Carlo
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11392/2493073
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