• Close contact with known cases of VM
• Immunocompromised hosts may be more susceptible to cytomegalovirus (CMV), herpes simplex virus (HSV), and adenovirus
• Lymphocytic choriomeningitis virus (LCMV) is commonly transmitted via exposure to rodent feces, bodily fluids, or nesting materials:
  • Rodent bites and vertical transmission as mechanisms of infection are possible but unconfirmed

ALERT
Geriatric Considerations
Cases of VM in the elderly are rare but documented. Consider alternative diagnoses (e.g., carcinomatous meningitis, NSAID- or medication-induced meningitis, etc.) in the elderly population.

Genetics No genetic predispositions have been established relating to increased susceptibility to VM.