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Severe Mycoplasma pneumonia in three sisters with sickle cell disease
D L Becton1, H S Friedman, J Kurtzberg
1Department of Pediatrics, Duke University Medical Center, Durham, North Carolina 27710.
Insights
Mycoplasma pneumoniae can cause severe pneumonia in children with sickle cell disease. This study details a familial outbreak in three sisters, highlighting potential host defense issues in sickling syndromes.
Area of Science:
- Pediatrics
- Infectious Diseases
- Hematology
Background:
- Mycoplasma pneumoniae typically causes mild respiratory infections in healthy children.
- Sickle cell disease (SCD) is a genetic blood disorder affecting hemoglobin.
- Children with SCD may have altered immune responses predisposing them to severe infections.
Observation:
- An outbreak of Mycoplasma pneumoniae infection occurred in three sisters with homozygous sickle cell disease.
- Two sisters required hospitalization due to severe pneumonia.
- One patient experienced respiratory failure necessitating prolonged mechanical ventilation.
Findings:
- Mycoplasma pneumoniae infection can lead to severe, life-threatening pneumonia in pediatric patients with sickle cell disease.
- Familial transmission of Mycoplasma pneumoniae was observed in siblings with SCD.
- Despite severity, patients recovered without long-term pulmonary sequelae.
Implications:
- This case series suggests that individuals with sickle cell disease may be at increased risk for severe Mycoplasma pneumoniae pneumonia.
- Altered host defenses in sickle cell disease might contribute to the severity of Mycoplasma infections.
- Further research is warranted to understand the interaction between sickle cell disease and Mycoplasma pneumoniae pathogenesis.
Abstract:
Mycoplasma pneumoniae, which usually causes mild infections in normal children, has been shown to cause isolated cases of severe pneumonia in children with sickle cell disease. We recently observed an outbreak of Mycoplasma pneumonia in three sisters with homozygous sickle cell disease. Two of them required hospitalization, and one progressed to respiratory failure requiring prolonged ventilatory assistance. All eventually recovered without long-term pulmonary complications. Familial outbreaks are not uncommon in Mycoplasma infection, but they have not been described previously in siblings with sickle cell disease. It is assumed that local or systemic host defense abnormalities predispose patients with sickling syndromes to more severe courses of Mycoplasma infections.