The Arizona Department of Health Services is reporting over 138,000 cases of COVID-19 as of Friday morning.

In Arizona, there are 138,523 cases and 2,583 deaths of the novel coronavirus, up 3,910 and 91 from Thursday morning, respectively. That computes to a 1.86% death rate of confirmed cases in the state. However, the number of cases could be far higher because many people have not been tested, and some can be infected without feeling sick.

Arizona — the 14th most populous state in the U.S. — is one of 10 states with over 100,000 cases.

The Maricopa County Department of Public Health reports 91,254 cases and 1,323 deaths in Arizona’s most populous county. State and county numbers differ depending on reporting times.

Maricopa County shows a case rate of 2,048 cases per 100,000 residents, using 2019 Census Bureau estimates. The state rate is 1,903. Santa Cruz County has the highest at 4,882 cases per 100,000 residents.

The coronavirus causes mild or moderate symptoms such as fever and cough for most people.

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

The Maricopa County Medical Examiner’s Office, which has already received four large portable storage coolers to handle future surges of coronavirus cases, has ordered another 10 coolers, which are expected to arrive by the end of next week.

The agency’s regular morgue storage was 63% full Thursday. Officials say none of the portable coolers — described as wheel-less storage containers with refrigeration units — have yet to be put into operation. With the 14 coolers, the county will be able to handle another 293 bodies.

Marcy Flanagan, executive director of the Maricopa County Department of Public Health, said many funeral homes in the county are at maximum capacity and unable to accept additional bodies.

While about 100 of the county’s 1,311 deaths have been handled by the medical examiner’s office, the agency is still seeing an annual surge in heat-related deaths and an increase in the overall number of deaths, which officials have been unable to explain, officials said.

Robert Rowley, director of the Maricopa County Emergency Management Department, said the county has been planning for the possibility to accept bodies in case hospitals run out of storage space, adding though that such an arrangement isn’t currently needed.

“If there is a hiccup anywhere along in the process, we are planning on what we can do to fill in those gaps and make sure everything is taken care of,” Mr. Rowley said.

The Associated Press contributed to this report.