Disseminated histoplasmosis in an immunocompetent patient with COVID-19 pneumonia

Area of Science:

• Mycology
• Infectious Diseases
• Critical Care Medicine

Background:

• Severe COVID-19 pneumonia often necessitates invasive mechanical ventilation.
• Patients with respiratory failure are susceptible to secondary infections.
• Disseminated histoplasmosis is typically linked to immunosuppression.

Observation:

• A 61-year-old immunocompetent male developed COVID-19 pneumonia requiring mechanical ventilation.
• Despite treatment, respiratory failure persisted.
• Disseminated histoplasmosis coinfection was diagnosed two weeks after ICU admission.

Findings:

• The patient received prompt treatment with amphotericin B and itraconazole.
• Antifungal therapy facilitated successful weaning from mechanical ventilation and extubation.
• This case highlights fungal coinfection in an immunocompetent patient.

Implications:

• Clinicians should consider fungal coinfections, including disseminated histoplasmosis, in critically ill COVID-19 patients on mechanical ventilation, regardless of immune status.
• Timely diagnosis and initiation of appropriate antifungal therapy are vital for improving outcomes.
• Increased awareness can prevent diagnostic delays and reduce mortality associated with severe COVID-19 and opportunistic fungal infections.