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Plain Old XML (POX) is a term used to describe basic XML, sometimes mixed in with other, blendable specifications like XML Namespaces, Dublin Core, XInclude and XLink.
POX is different from REST in that the latter refers to a style for communication protocols, while the former only refers to an information format style.
REST could be seen as POX over HTTP with some pecularities.
Chicken pox, also spelled chickenpox, is a common childhood disease caused by the varicella-zoster virus (VZV), also known as human herpes virus 3 (HHV-3), one of the eight herpesviruses known to affect humans.
A chicken pox vaccine is now available, and is now required in some countries for children to be admitted into elementary school.
There are many explanations offered for the origin of the name chicken pox, from the idea that the specks that appeared looked as though the skin was picked by chickens to that the disease was named after chick peas, from a supposed resemblance of the seed to the lesions.