HelicsWin.Net (also referred to as HWN) is a software application developed for the manual entry of data of the ECDC HAI-Net surveillance of healthcare-associated infections (HAIs).
ECDC regularly assesses new evidence on variants detected through epidemic intelligence, rules-based genomic variant screening or other scientific sources.
Varicella is caused by the varicella-zoster virus (VZV), which also causes shingles (herpes zoster). The virus typically affects children aged 2‒8 years.