Case Report
Volume 10 Issue 2 - 2021
A Case of COVID-19 and Legionella Pneumonia
Antonella Spacone1*, Antonietta Esposito1, Riccardo Di Fonzo2, Tommaso Spina2, Adriano Barone2, Alessandra Di Lorito2, Antonio Gravino2, Chiaravaleria Di Giacomo2, Giacomo Zuccarini1 and Giustino Parruti3
1Respiratory Medicine Unit, Pescara General Hospital, Pescara, Italy
2Covid-Unit, Pescara General Hospital, Pescara, Italy
3Infectious Diseases Unit, Pescara General Hospital, Pescara, Italy
*Corresponding Author: Antonella Spacone, Respiratory Medicine Unit, Pescara General Hospital, Pescara, Italy.
Received: December 26, 2020; Published: January 25, 2021


Background: Coronavirus disease (COVID-19) is a global pandemic infectious disease characterized by an acute respiratory and systemic syndrome, appearing for the first time on December 31, 2019 in China. Since then, the disease rapidly spread and was declared a pandemic by the World Health Organization on March 11, 2020.

Legionella, as a cause of community-acquired pneumonia, is often under-recognized. According to the Centers for Disease Control and Prevention, although 18,000 to 25,000 cases of pneumonia due to Legionella pneumophila occur each year, this diagnosis is reported in only 1200 to 1500 cases, due to the nonspecific signs and symptoms of the disease and inadequate testing for Legionella. This case report describes a patient who developed bilateral pneumonia due to COVID-19 and Legionella.

Case Report: A 56-year-old man presented with fever, cough, gastrointestinal symptoms and myalgia and a diffuse bilateral lung infiltration with ground-glass opacities on chest tomography images. He was first suspected of having COVID-19 pneumonia, but then Legionella pneumonia was also diagnosed. The patient promptly received supportive treatment including anti-inflammatory treatment, heparin, and antibiotic therapy with macrolide and rifampicin.

Conclusion: This case underscores the importance of appropriate differential diagnosis during the current COVID-19 pandemic, so that other treatable causes of pneumonia may not be overlooked. In the present case, early diagnosis of co-infection with Legionella, which can be fatal if untreated, especially in the elderly, prompted appropriate treatment and led to full clinical resolution. This case study emphasizes the importance of an early and prompt diagnosis of pulmonary coinfections in the current wave of COVID-19 pandemic.

Keywords: Covid-19; Legionella; Pneumonia


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Citation: Antonella Spacone., et al. “A Case of COVID-19 and Legionella Pneumonia”. EC Pulmonology and Respiratory Medicine 10.2 (2021): 28-33.

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