Haemophilus parainfluenzae infection of the central nervous system. A report on two infants

Area of Science:

• Pediatric Neurology
• Infectious Diseases
• Microbiology

Background:

• Haemophilus parainfluenzae is a Gram-negative coccobacillus commonly found in the upper respiratory tract.
• Central nervous system (CNS) infections in infants, such as meningitis and brain abscess, can have severe consequences.
• While less common than other Haemophilus species, H. parainfluenzae can be an opportunistic pathogen.

Observation:

• Two pediatric cases of CNS infection caused by Haemophilus parainfluenzae are presented.
• Case 1: A 12-month-old girl developed meningitis.
• Case 2: A 17-month-old girl presented with a brain abscess.
• Both infants had a history of prolonged upper respiratory infections preceding the CNS disease.

Findings:

• Haemophilus parainfluenzae was identified as the causative agent in both meningitis and brain abscess.
• The clinical presentation varied, with one infant developing meningitis and the other a brain abscess.
• Both patients received appropriate antimicrobial therapy tailored to the identified pathogen.

Implications:

• This report expands the understanding of CNS infections caused by Haemophilus parainfluenzae in infants.
• It underscores the potential for this bacterium to cause severe neurological complications.
• Early diagnosis and effective treatment are crucial for favorable outcomes in pediatric CNS infections, even with less common pathogens.