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Intrafamilial outbreak of Mediterranean spotted fever
M E Miranda1, A González, J L Merino
1Department of Internal Medicine, Hospital La Paz, Universidad Autónoma de Madrid, Spain.
Abstract:
The existence of intrafamilial outbreaks of spotted-fever group rickettsioses has seldom been reported, and their true incidence is not known. We here report the occurrence of Mediterranean spotted fever (MSF) in three members of a family: a boy, his grandmother and his grandfather. The infection resolved uneventfully in the boy, and followed a more protracted course in the two older patients, who suffered complications including drowsiness, clotting defects and acute renal failure. This finding highlights the importance of conditioning factors such as age and associated illnesses in the prognosis of infection due to Rickettsia conorii, and suggests that strict surveillance of individuals at risk of infection is necessary for prompt recognition of the onset of the illness and initiation of antibiotic treatment without delay.
Insights
Intrafamilial outbreaks of Mediterranean spotted fever (MSF) are rare. This study details three family members infected with MSF, showing age impacts disease severity and complications.
Area of Science:
- * Infectious Diseases
- * Rickettsial Infections
- * Public Health
Background:
- * Intrafamilial outbreaks of spotted-fever group rickettsioses are infrequently documented.
- * Understanding the incidence and clinical spectrum of these infections is crucial for public health.
- * Mediterranean spotted fever (MSF) is caused by Rickettsia conorii.
Observation:
- * Three family members (a boy, grandmother, and grandfather) were diagnosed with MSF.
- * The boy experienced an uncomplicated infection.
- * The older patients had a prolonged illness with complications.
Findings:
- * Age and pre-existing conditions significantly influence the prognosis of Rickettsia conorii infections.
- * Complications in older patients included drowsiness, clotting defects, and acute renal failure.
- * Uneventful recovery was observed in the younger patient.
Implications:
- * Highlights the need for surveillance of individuals at risk for Rickettsia conorii.
- * Emphasizes prompt recognition and initiation of antibiotic treatment for MSF.
- * Underscores the importance of considering age and comorbidities in managing rickettsial infections.