Since a portion of cases as asymptotic surely you want to test as many people as possible with it without symptoms.
I’m in NSW, AUS and were advised by our GP to go get our DD tested who just had symptoms of conjunctivitis. (Phone appointment with GP)
We are also advised to get tested for any if the below symptoms as well as oncemore list:
fatigue
runny nose
muscle pain
joint pain
headache
diarrhoea
nausea/vomiting
loss of appetite