A rare case of Elizabethkingia meningoseptica infection in a neonate

Background: Elizabethkingia infections were reportedly rare, but if it was found, it had been known to cause neonatal meningitis, bloodstream infections and respiratory infections. Elizabethkingia meningoseptica had a unique antibiotic susceptibility pattern, usually resistant to most antibiotics. Elizabethkingia infections were associated with a high mortality rate because of the lack of effective therapeutic regimens, antibiotic resistance and virulence. Case Presentation: Fourteen days old boy patient came with the chief complaint of seizure, which occurred twice. Before the seizure, the patient had a fever with the highest temperature was 39°C. The patient looked lethargic, tended to sleep more often, cried occasionally and was not as active as previously. Septic marker revealed an Immature to Total neutrophil (IT) ratio of 0.2 and C-Reactive Protein (CRP) 49.30 mg/dL. A blood smear examination showed toxic granules, vacuolization of the leucocyte and reactive thrombocytosis. Cerebrospinal fluid analysis revealed a cell number of 2520 cell/uL, polymorphonuclear (PMN) cell 80%, mononuclear (MN) cell 20%, Nonne and Pandy was positive, protein level at 300 mg/dL and cerebrospinal fluid glucose level below 20 mg/dL. The patient was initially diagnosed with sepsis and meningitis and was given ampicillin and gentamicin. Blood and cerebrospinal fluid culture isolated Elizabethkingia meningoseptica and significantly as the infection-causing agent. The antibiotic sensitivity of the blood culture was ciprofloxacin and levofloxacin. The antibiotic sensitivity of the cerebrospinal fluid culture was levofloxacin. During the treatment, there were several inappropriate results between clinical manifestation and laboratory results; the antibiotic was changed to levofloxacin according to the sensitivity of the blood and cerebrospinal fluid culture. Conclusion: Elizabethkingia meningoseptica was a rare case, and the nature of this bacteria was resistant to multiple antibiotics. Treatment should be considered carefully.