Table 12: Viral, bacterial, fungal, and parasitic brain infections with frontal subcortical circuit involvement.

Viral
 HIV encephalopathy
 JC virus—progressive multifocal leukoencephalopathy (PML)
 Herpes simplex encephalitis
 West Nile virus
  Tegmentothalamic syndrome (various)
Bacterial
 Tuberculous meningitis
 Neisseria meningitides
 Hemophilus influenza
 Listeria monocytogenes
 Whipple’s disease
Spirochetal
 Borreliosis (Lyme disease)
  Neurolues
Fungal
 Cryptococcal meningitis
 Histoplasmosis
Coccidioides immitis
Blastomyces dermatitidis
 Candida species
Prionopathies
 Creutzfeldt Jakob disease (CJD)
 Variant Creutzfeldt-Jakob disease (V-CJD)
 Kuru
 Fatal familial insomnia (FFI)
 Gerstmann-Straeussler-Scheinker syndrome (GSS)
Parasitic
 Malaria
 Bilharziasis
 Cysticercosis
 Toxoplasmosis
 Amoebic meningitis (Naegleri Fowleri)