Actionable diagnosis of neuroleptospirosis by next-generation sequencing

N Engl J Med. 2014 Jun 19;370(25):2408-17. doi: 10.1056/NEJMoa1401268. Epub 2014 Jun 4.

Abstract

A 14-year-old boy with severe combined immunodeficiency presented three times to a medical facility over a period of 4 months with fever and headache that progressed to hydrocephalus and status epilepticus necessitating a medically induced coma. Diagnostic workup including brain biopsy was unrevealing. Unbiased next-generation sequencing of the cerebrospinal fluid identified 475 of 3,063,784 sequence reads (0.016%) corresponding to leptospira infection. Clinical assays for leptospirosis were negative. Targeted antimicrobial agents were administered, and the patient was discharged home 32 days later with a status close to his premorbid condition. Polymerase-chain-reaction (PCR) and serologic testing at the Centers for Disease Control and Prevention (CDC) subsequently confirmed evidence of Leptospira santarosai infection.

Publication types

  • Case Reports
  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenosine Deaminase / deficiency
  • Adolescent
  • Agammaglobulinemia / complications
  • Biopsy
  • Brain / pathology*
  • Cerebrospinal Fluid / microbiology*
  • DNA, Bacterial / analysis*
  • Fever / etiology
  • Headache / etiology
  • Humans
  • Leptospira / genetics*
  • Leptospira / isolation & purification
  • Leptospirosis / complications
  • Leptospirosis / diagnosis*
  • Leptospirosis / microbiology
  • Male
  • Meningoencephalitis / complications
  • Meningoencephalitis / diagnosis*
  • Meningoencephalitis / microbiology
  • Sequence Analysis, DNA / methods*
  • Severe Combined Immunodeficiency / complications

Substances

  • DNA, Bacterial
  • Adenosine Deaminase

Supplementary concepts

  • Severe combined immunodeficiency due to adenosine deaminase deficiency