Police officers in north Wales have been deliberately coughed at by members of the public who claim to have coronavirus.
The North Wales Police Federation said at least two officers have been targeted in the last few days.
A 24-year-old woman from Pwllheli has been arrested after spitting and coughing at a police officer while claiming she had the virus.
The woman also bit one officer and assaulted two others by pushing and striking them, after they were called to a disturbance in the town.
A man from London was jailed on Tuesday for coughing at two police officers in the English capital.
The 41-year-old, from south Norwood, south London, told officers he hoped they would pass the virus on to their children. He was sentenced to 19 weeks in prison.
Another man, from Derbyshire, who said he was a 'super spreader' of coronavirus was also jailed on Tuesday after coughing at police officers. He was jailed for 16 weeks.
The North Wales Police Federation said: "This is vile and makes us immensely angry. Our members are frontline; desperately trying to protect us all and this happens. Sickening."
In March a man from north Wales was sentenced to 18 weeks in prison for spitting at an officer in the south Gwynedd area.
Police District Inspector Matt Geddes branded the offence "truly vile" and pointed out that it was even more serious given the current risks associated with coronavirus.
Police were granted new powers in March to arrest people ignoring lockdown rules in Wales.
Those who do not comply with the new laws can be directed to return home from where they are. A number of fines can also be handed out.