Variations of the virus, coupled with waning immunity, have created what one health expert describes as a "six-month pattern," where COVID-19 cases spike during the summer and winter months.
Two new studies, including one from the University of Arizona, provide more evidence that the coronavirus pandemic originated in a Wuhan, China market where live animals were sold.
The health agency said it will continue to monitor the state of the pandemic and will reassess the need for a testing requirement if the situation changes.
More than 75% of Maricopa County is considered a food desert, meaning residents are a mile or more away from fresh food. South Phoenix falls into that category.
The University of Arizona will lift its indoor mask requirement beginning March 21, following similar moves by Arizona’s other two public universities.