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Table 3 Breakdown of microbiological aetiology and certainty of diagnosis

From: An integrated model of care for neurological infections: the first six years of referrals to a specialist service at a university teaching hospital in Northwest England

Diagnosis Organism Certainty
   Proven Probable Possible
Viral meningitis Total 14 1 2
  Herpes simplex virus 2 7 0 0
  Enterovirus 5 0 0
  Varicella zoster virus 1 0 0
  Epstein Barr virus 1 0 0
  Mumps  virus 0 1 2
Bacterial meningitis Total 23 5 0
  Streptococcus pneumoniae 7 4 0
  Neisseria meningitidis 8 1 0
  Listeria monocytogenes 3 0 0
  Pseudomonas aeruginosa 1 0 0
  Streptococcus pyogenes 1 0 0
  Haemophilus influenzae 1 0 0
  Eschericia coli 1 0 0
  Mixed 1 0 0
Encephalitis Total 8 6 1
  Herpes simplex virus 1 6 0 1
  Cytomegalovirus 1 0 0
  Human herpes virus 6 1 0 0
  Varicella zoster virus 0 1 0
  HIV 0 5 0
TBM Mycobacterium tuberculosis 4 2 13
Peripheral neuropathy Total 0 7 0
  Herpes simplex virus 1&2 0 2 0
  Cytomegalovirus 0 1 0
  Varicella zoster virus 0 1 0
  Salmonella typhi 0 1 0
  HIV 0 3 0
Retinitis Total 4 3 0
  Cytomegalovirus 2 3 0
  Varicella zoster virus 2 0 0
Cerebral abscess   2 0 0
  Aspergillus sp. 1 0 0
  Nocardia sp. 1 0 0
Other syndromes     
Syphilis Treponema pallidum 0 5 2
Toxoplasmosis Toxoplasma gondii 0 5 0
Cysticercosis Taenia solium 0 1 2
Crytococcal meningitis Cryptococcus neoformans 1 1 0
Lyme disease Borrelia burgdoferi 0 2 0
Optic neuropathy HIV 0 1 0
Myelopathy HIV 0 2 0
Cerebral vasculitis HIV 0 1 0
Antiretroviral drug reaction HIV 0 1 0
Stroke, septic embolus Group C Streptococcus 1 0 0
Grand Totals   57 44 20
  1. The table shows data for 121 patients for whom a microbiological diagnosis was confirmed. A further 34 patients were diagnosed as having a neurological infectious disease, but the causative organism was unknown