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).
The seroincidence calculator utilises the combination of serum antibody levels (lgG, lgM, and lgA) at a given point in time to estimate the time since seroconversion, which in turn gives an estimate of annual 'force of infection' in the tested population.