Zoonotic Streptococcus suis meningitis causes hearing loss: A case report

Streptococcus suis meningitis, which is commonly transmitted via contact with infected pigs or consumption of undercooked pork, poses significant public health risks in pig-rearing regions, including Asia. This report presents a case of S. suis meningitis in Taiwan, highlighting its clinical presentation, management, and complications. A 53-year-old man with hypertension, diabetes mellitus, and hyperlipidemia history presented with fever, chills, headache, nausea, and altered consciousness. Lumbar puncture revealed bacterial meningitis and cerebrospinal fluid culture confirmed S. suis infection. Condition improved through ceftriaxone (2 g) administration every 12 h for 14 days. However, bilateral deafness, a hallmark complication of S. suis meningitis, occurred. S. suis is endemic in Taiwan’s pig-farming regions. S. suis meningitis’ clinical manifestations may overlap with those of acute bacterial meningitis, with hearing loss as a notable sequela. Early diagnosis and prompt treatment with ceftriaxone are critical for reducing morbidity and mortality. Public health strategies emphasizing prevention, particularly in high-risk populations, are essential. Currently, S. suis meningitis remains a critical zoonotic threat in pig-farming regions. Early recognition, effective management, and hearing loss awareness are essential to improve patient outcomes.