PHOENIX — Arizona’s most populous county warns of a significant increase in cases of flu, COVID-19 and other respiratory illnesses.

Maricopa County Public Health issued an alert on Friday that cases of these viruses, including the respiratory syncytial virus known as RSV, are higher than normal for this time of year. ” is classified. The infection of COVID-19 also belongs to the high category.

Officials are urging anyone over the age of 6 months to get vaccinated against influenza and COVID-19. Especially during the holiday season when many people gather.

They also encourage indoor mask wearing in public places.

Medical epidemiologist Dr. Nick Stave says he’s concerned about how many cases there will be before people start traveling on Christmas. He says the medical system is strained.

Symptoms of the three viruses include fever, cough, sore throat, and runny or stuffy nose.