Shingles ( Herpes Zoster ) is a painful, and relatively long-lasting skin condition which affects around 1/3rd of the Western population at some stage in their lives. It's known to be associated with the 're activation' of the Varicella Zoster Virus (VZV) - which remains in a person's body after an infection of Chickenpox.
It's assumed that the VZ virus remains inactive in nerve cells - but has never been isolated from samples of living cells.
In addition, the physiological mechanism which triggers the re-emergence of the dormant virus, has not yet been discovered.
Further reading : Varicella in Centers for Disease Control and Prevention Epidemiology and Prevention of Vaccine-Preventable Diseases, 13th Edition
Ideas for new topics, and suggested additions / corrections for old ones, are always welcome.
If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !
Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.
( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)