RT Book, Section A1 Justo, Julie Ann A1 Chastain, Daniel B. A2 Sutton, S. Scott SR Print(0) ID 1158314521 T1 Central Nervous System Infections T2 McGraw-Hill's NAPLEX® Review Guide, 3e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781260135923 LK accesspharmacy.mhmedical.com/content.aspx?aid=1158314521 RD 2024/04/19 AB Central nervous system (CNS) infections are often differentiated by the cause and type of infection (meningitis or encephalitis). Meningitis is a CNS infection characterized by inflammation of the meninges, or the layers of tissue that surround the brain and spinal cord. In contrast, encephalitis is an infection and inflammation of the brain. Aseptic meningitis occurs secondary to pathogens or other causes that do not grow in the microbiology laboratory when cultured (eg, viruses, atypical bacteria, fungi, drug causes). Meningitis (aseptic more than bacterial) is the most common type of CNS infection, followed by viral encephalitis.