The state had 352,101 COVID-19 cases—an increase of 5,680 from the previous day, and 64 newly reported deaths, bringing the number of statewide virus-related deaths to 6,885 on Dec. 4, according to data from the Arizona Department of Health Services.
The number of diagnostic tests reported in Maricopa County as of Dec. 3 was 12,598 with 26.1%—or 3,288 tests–coming back positive. Those tests include polymerase chain reaction, known as PCR, tests and antigen tests. The PCR test determines an active case of COVID-19, the other kind of testing data the state tracks is related to serology—or antibody—tests, which determines if a person has been infected in the past with the virus. Antigen tests "may not be as accurate or able to run as many patient samples per day, however, the quick results provide the ability to rapidly triage and make decisions," according to ADHS.
Maricopa County reported on its dashboard that the large number of new cases Dec. 1 was a result of the extended four-day weekend and that the newly reported cases were from specimens collected over the last week and not just from the previous day.
The county also reported 14 new deaths Dec. 3, bringing the county's death toll to 4,107, according to data from the Maricopa County Department of Public Health.
Of the county's 4,107 known deaths, 1,367 are tied to long-term care facilities, making up 33.28% of the county's total COVID-19-related deaths.
The state and county also track hospitalization data. In Maricopa County, 8% of the county's total cases resulted in hospitalization as of Dec. 1. The county tracks intensive care unit, or ICU, data separately, and 1% of the county's total cases have resulted in admittance to the ICU. Statewide, as of Dec. 1, ADHS reported 8% of the state's cases have resulted in hospitalization—27,738 cases across the state.
According to data from the state, of the completed and reported Maricopa County COVID-19 diagnostic tests, 11.7% of them have yielded a positive result.
Statewide, there have been 2,326,744 diagnostic tests completed. Of the total PCR tests across the state, 10.8% have yielded a positive result.