VSN meaning in Medical ?

Vaccine Safety Net (VSN) is a global network of websites aimed at helping people judge the quality of online information on vaccine safety. It was established in 2003 by the World Health Organization (WHO), which had previously set up the independent Global Advisory Committee on Vaccine Safety (GACVS), prompted by concern from public health officials regarding the dissemination of potentially harmful health information via the web. By appraising websites, using credibility and content criteria defined by GACVS, the VSN has been developed to deliver information that is easy to access and up-to-date. As of 2020, the initiative has 89 member sites in 40 countries and 35 languages.

Prior to inclusion in the list, each website is assessed for its credibility, accessibility, content and design. A peer-reviewed study of 26 websites listed by VSN in 2008 noted "the transparency of financing, the lack of links to the pharmaceutical industry, the transparency of site management and responsibility and the proven scientific quality and constant updating of contents" of its assessed resources.