Fatal Cronobacter sakazakii Sequence Type 494 Meningitis in a Newborn, Brazil.

We describe a case of infection with Cronobacter sakazakii sequence type 494 causing bacteremia and meningitis in a hospitalized late premature infant in Brazil. We conducted microbiological analyses on samples of powdered infant formula from the same batch as formula ingested by the infant but could not identify the source of contamination.

Vertebral tuberculosis as a paradoxical reaction to the treatment of pulmonary and meningeal tuberculosis in an immunocompetent patient: A case report.

INTRODUCTION: Paradoxical reaction in tuberculosis (TB) is defined as the reappearance of general symptoms, aggravation of pre-existing diseases, or appearance of new lesions despite adequate anti-TB therapy. It may result from the hyperactivity of the immune response, resulting in an intense inflammation. There are few cases of vertebral TB reported as paradoxical reaction, mainly among immunocompetents patients. PATIENT CONCERNS: We describe a male immunocompetent patient with confirmed pulmonary and meningeal TB. He was readmitted after 60 days of adequate treatment, with vertebral TB and paravertebral abscess, despite clinical improvement of the other locations. We defined as an uncommon case of a paradoxical reaction, confirmed by nuclear magnetic resonance and molecular rapid test for TB. DIAGNOSIS: Mycobacterium tuberculosis (MTB) was detected in cerebrospinal fluid by molecular rapid test (Gene Xpert MTB/ rifampicina method). Sputum research and culture were positive for the same agent. Lumbosacral spine nuclear magnetic resonance revealed bone destruction from T8 to T11, and a paravertebral collection was found. Gene Xpert MTB/rifampicina and culture were positive for M tuberculosis in the drained material of the paravertebral abscess. INTERVENTIONS: The paravertebral abscess was drainage by tomography-guided. Treatment with 4 anti-TB drugs was extended for 60 days and 2 anti-TB drugs was maintained for 10 months. There was a complete clinical improvement. OUTCOME: After draining the paravertebral abscess, the patient progressively improved and was discharged for outpatient follow-up. He was on antituberculous drugs for 1 year; subsequently, complete resolution of the infection was reported. CONCLUSION: Paradoxical reaction may be a difficult diagnosis in immunocompetent patient. Vertebral TB as a paradoxical reaction is an uncommon presentation. Therapeutic failure or resistance to treatment should be ruled out to confirm the diagnosis of paradoxical reaction.

Melioidosis, an emerging infectious disease in the Midwest Brazil: A case report.

RATIONALE: Melioidosis is an emerging infectious disease in Brazil and caused by Burkholderia pseudomallei, with high morbidity and mortality rates. A total of 28 melioidosis cases were reported in Brazil until 2015. The majority of melioidosis cases were reported in the Northwest region of Brazil and such cases were not previously detected in the Midwest region of Brazil. PATIENT CONCERNS: A 42-year-old man was admitted with a non-productive cough, dyspnea, myalgia, diffuse abdominal pain. Pulmonary auscultation revealed a vesicular murmur, snoring sounds, and the presence of basal crackling rales in the left hemithorax. The patient evolved with several respiratory failures and he was diagnosed as the first case of community-acquired pneumonia with sepsis caused by B pseudomallei in Mato Grosso do Sul, Midwest state of Brazil. DIAGNOSIS: The cell isolates were subjected to 16S rRNA gene sequencing to confirm the bacterial species. INTERVENTIONS: Administration of trimethoprim/sulfamethoxazole and meropenem stabilized the clinical condition of the patient. Subsequently upon discharge, the patient was also treated with trimethoprim/sulfametothoxazole for a year. OUTCOME: We reported the first case of community-acquired pneumonia with sepsis caused by B pseudomallei in Mato Grosso do Sul, Midwest state of Brazil and the patient survived. LESSONS: The emergence of melioidosis in the Midwest region is being neglected and underestimated and melioidosis must be considered of the differential diagnosis in community infections.