COVID-19 Vaccine

AP Photo/Mark Humphrey

Coconino County health officials continue to report a high level of COVID-19 community transmission.

Angela Gervasi / KNAU

The board that oversees Arizona’s three state universities announced Friday that they'll will comply with a federal mandates for government contractors and require their employees to be fully vaccinated for COVID-19 by Dec. 8 unless they receive exemptions. 


AP Photo/Mary Altaffer, File

Arizona health officials Thursday reported nearly 2,386 new known cases of COVID-19 and six additional deaths.

AP Photo/Mary Altaffer, File

Arizona health officials Tuesday reported 2,254 new known cases of COVID-19 and 74 more additional deaths.

(Nina Mayer Ritchie/Johns Hopkins Center for American Indian Health via AP)

The Navajo Nation Council has passed legislation requiring all government employees across the reservation to be fully vaccinated against COVID-19. It also presses schools and all Navajo-owned businesses to adopt similar vaccine requirements. KNAU’s Ryan Heinsius reports.

A new study by the University of Arizona Health Sciences finds that patients undergoing chemotherapy treatments had a lower immune response to two doses of the COVID-19 vaccine, but an increased response after a third dose. Chemotherapy not only attacks cancer cells, but also the immune cells needed to fight off infections. The U of A research team looked at 53 cancer patients on immunosuppressive therapy and compared their immune responses following the first and second doses of the Pfizer vaccine with that of 50 health adults.

Frank Augstein/AP

Arizona is reporting 3,388 new confirmed COVID-19 cases and 39 deaths. The state dashboard posted the latest numbers Wednesday, but health officials say they are somewhat elevated because a system glitch a day earlier kept some cases from being reported. 


Johnson & Johnson via AP, File

Arizona health officials have reported 2,020 new know cases of COVID-19 but no additional deaths.

John Minchillo/AP, file

Coconino County health officials Friday reported a continued high level of community transmission of COVID-19.

KNAU | Angela Gervasi

Northern Arizona Healthcare says its employees and volunteers must be fully vaccinated against COVID-19 by Dec. 31, 2021.

The healthcare company includes the Flagstaff Medical Center and Verde Valley Medical Center, along with facilities in Sedona, Oak Creek, and Camp Verde. On its website, NAH says it employs more than 3,000 “doctors, nurses and other experts.” 

In Monday’s announcement, NAH officials cited developing variants as a factor in the vaccine mandate.