The Arizona Department of Health Services is reporting over 300 new cases of COVID-19 as of Monday morning.

According to AZDHS, there are 198,414 cases and 4,771 deaths of the novel coronavirus in Arizona, up 311 and zero from Sunday, respectively.

The number of cases could be higher because many people have not been tested, and some can be infected without feeling sick.

Maricopa County shows a case rate of 2,942 cases per 100,000 residents, using 2019 population estimates. The state rate is 2,726. Santa Cruz County has the highest at 5,903 cases per 100,000 residents.

As of Monday morning, Arizona has the lowest R-naught in the nation at 0.76, according to rt.live. This is the average number of people who become infected by an infectious person. Less than 1.0 is ideal, officials say. Hawaii has the highest at 1.23.

COVID-19-related hospitalization metrics posted on the department’s pandemic dashboard continued to trend downward and were at levels last seen in late May and early June before Arizona became a national hot spot.

New case and death reports have dropped since mid-July.

For those living in Phoenix, the city and Vincere Cancer Center are in the community with a mobile testing van. The tests are free, but appointments are required at www.Phoenix.gov/COVIDTesting.

AZDHS and ASU Biodesign have partnered to make available COVID-19 saliva testing for Arizonans. It’s quick, easy and free.

Testing is available this week at State Farm Stadium in the West Valley, Diablo Stadium in Tempe and Ellie Towne Community Center in Tucson. Details on hours of operation and pre-registration requirements can be found at www.bit.ly/azcovidtestwv.

The coronavirus causes mild or moderate symptoms such as fever and cough for most people. The vast majority of people who are diagnosed with COVID-19 recover.

But for some — especially older adults and people with existing health problems — it can cause more severe illness including pneumonia, and death.