This document specifies functional requirements for a self-initiated disease symptom checker app to be used for early screening and control of pandemics such as COVID-19.

There are four functional components specified in this document:

a)？self-registration (see 7.2);

b)？symptom checking (see 7.3);

c)？guidance on screening stations (see 7.4);

d)？health consultation (see 7.5).