👉 CSFV39 is a type of bacterial infection that can cause inflammation, fever, and other symptoms in children. It primarily affects the central nervous system (CNS) and affects up to 10% of children aged 6 months to 5 years. Symptoms may include fever, chills, headache, fatigue, nausea, vomiting, or diarrhea. Treatment typically involves antibiotics and supportive care such as hydration and pain management.