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Varicella zoster virus (VZV), also known as human herpesvirus 3 (HHV-3, HHV3) or Human alphaherpesvirus 3 (taxonomically), is one of nine known herpes viruses that can infect humans. It causes chickenpox (varicella) commonly affecting children and young adults, and shingles (herpes zoster) in adults but rarely in children.
It is sometimes called herpes zoster oticus and has variable presentation which may include a lower motor neuron lesion of the facial nerve, deafness, vertigo, and pain. [2] [3] A triad of ipsilateral facial paralysis, ear pain, and vesicles on the face, on the ear, or in the ear is the typical presentation.
It may reactivate under conditions of physiological stress or if the immune system is suppressed in any way (for example during an illness or undergoing chemotherapy), resulting in herpes zoster, also known as shingles or Ramsay Hunt syndrome when facial paralysis in involved. If the nerve cells affected lie within the facial nerves, it causes ...
Shingles, also known as herpes zoster or zona, [6] is a viral disease characterized by a painful skin rash with blisters in a localized area. [2] [7] Typically the rash occurs in a single, wide mark either on the left or right side of the body or face. [1] Two to four days before the rash occurs there may be tingling or local pain in the area.
The International Classification of Diseases (ICD) is a globally used medical classification used in epidemiology, health management and for clinical purposes.The ICD is maintained by the World Health Organization (WHO), which is the directing and coordinating authority for health within the United Nations System. [1]
Progressive outer retinal necrosis (PORN) syndrome is a form of chorioretinitis, an infection in the retina, the back of the eye.The disease is most commonly caused by the varicella zoster virus and is found almost exclusively in patients with HIV/AIDS (acquired immunodeficiency syndrome).
It covers ICD codes 001 to 139. The full chapter can be found on pages 49 to 99 of Volume 1, which contains all (sub)categories of the ICD-9. ... 053.10 Herpes zoster ...
In particular, up to 10% of pregnant women with chickenpox develop pneumonia, the severity of which increases with onset later in gestation. In England and Wales, 75% of deaths due to chickenpox are in adults. [30] Inflammation of the brain, encephalitis, can occur in immunocompromised individuals, although the risk is higher with herpes zoster ...