Resumen

APAGUENO-RUIZ, Consuelo et al. Disseminated infection by Bacillus Calmette-Guerin in an immunodeficient infant: case report. Rev. perú. med. exp. salud publica [online]. 2019, vol.36, n.1, pp.134-137. ISSN 1726-4634.  http://dx.doi.org/10.17843/rpmesp.2019.361.3666.

The Bacillus Calmette-Guerin (BCG) vaccine given to newborns in countries with a high incidence of tuberculosis may cause local reactions up to disseminated infection in immunocompromised patients. We report the case of a six-month-old male infant with a history of having received the BCG vaccine at birth, and presenting repeated infectious, soft violet nodules in the trunk and extremities with the presence of acid-alcohol-resistant bacilli (BAAR) in histopathology and skin culture; the molecular study reported the presence of Mycobacterium bovis BCG. In the tomography, interstitial opacities were observed in the lungs and in the gastric lavage BAAR was identified. The genetic study of the patient and the mother revealed the presence of a mutation in the IL2RG gene confirming the diagnosis of severe combined immunodeficiency. Received treatment with human immunoglobulin and anti-tuberculosis scheme with isoniazid, rifampicin, and ethambutol. We present the case because of the implication in the life prognosis of these patients and because of the need for an accurate and timely diagnosis.

Palabras clave : BCG vaccine; Severe combined immunodeficiency; Cutaneous tuberculosis; Mycobacterium bovis.

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