Parvovirus B19, which causes fifth disease in humans, is a member of the Erythrovirus genus of the Parvoviridae. Prior to 2014, it was also the name applied to a genus within the subfamily Parvovirinae, but this has been amended to genus Protoparvovirus to avoid confusion between taxonomic levels.
PVC redirects here. For other uses, see PVC (disambiguation). Polyvinyl chloride (/ËpÉlivaÉªnÉl ËklÉÉraÉªd/), more correctly but unusually poly(vinyl chloride), commonly abbreviated PVC, is the world's third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene. PVC comes in two basic forms: rigid (sometimes abbreviated as RPVC) and flexible.
Plastic Type 2 - HDPE. Plastic marked with a 2 is made of High-Density Polyethylene.â You see HDPE everywhere, from milk jugs to detergent bottles. It's one of the best and safest types of plastic for food consumption as it resists UV rays and is extremely heat tolerant ( -148 to 176 F / -100 to 80 C ).