A spike in cases of Ross River fever has Murrumbidgee Local Health District on high alert.
There have been 18 cases notified to MLHD this month up until January 22, after less than five in the same period last year.
Eight cases were reported as of January 14.
There have been no arbovirus detections in sentinel chickens, however Ross River was found in mosquito trappings on January 19 in the Griffith area.
To date, mosquito numbers have been down on previous seasons, but residents and visitors in the area are advised to take precautions to avoid mosquito bites and minimise potential exposure to the virus.
The symptoms of Ross River fever include fever, chills, headache, aches and pains which typically begin within three weeks of being bitten.
Tiredness and sore and swollen joints can also occur, while a rash may appear for the first seven to 10 days of illness in some people.
Symptoms can subside after a few weeks, but some people may experience them for weeks or even months.
People should see a doctor if they experience symptoms.
Steps to avoid mosquito bites are to cover up when outside with light-coloured, loose-fitted clothing and enclosed footwear, use repellent on exposed skin every few hours, remove potential mosquito breeding sites from around the home and screen windows and doors.
Mosquito coils or vaporising mats are safe for indoor use, but devices that electrocute insects are not considered effective, while campers are asked to use flyscreens on caravans and tents or sleep under mosquito nets.
MLHD acting public health director Alison Nikitas will provide an update on the virus and provide a clarification of locations in Albury on Monday.