Gardai are investigating an incident at Blanchardstown Hospital in Dublin where a healthcare worker was spat at deliberately.
Her alleged attacker has since tested positive for Covid-19.
Gardaí are calling on people to report any instances where they have been threatened or intimidated by people deliberately coughing and spitting at them.
They say that this activity could amount to an offence under the Public Order Act or Non-Fatal Offences Against the Person Act.