Oregon Health & Science University partnered with SEIU Local 503 to organize drive-through COVID vaccine clinics Jan. 9 and 10, 2021, for SEIU members who are community health workers. The clinics were held at the Oregon Convention Center in Portland (shown here, on Jan. 10) and Hillsboro Stadium. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Mass Vaccination Site at the Oregon Convention Center in Portland opened in its new, larger location on March 2, 2021. The All4Oregon site is now located in the centers exhibit hall, which is more than double the size of its former location in the centers ballroom. This location also is more convenient, as the exhibit hall is located next to the centers parking garage entrance. The All4Oregon site is a collaborative effort of OHSU, Kaiser Permanente, Legacy Health and Providence. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

Oregon Gov. Kate Brown visited the All4Orgon COVID-19 Vaccination Site on May 18, 2021, to recognize the site giving its 500,000th dose since opening on Jan. 20, 2021. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Vaccination Site, which has operated at the Oregon Convention Center in Portland since Jan. 20, 2021, gave its 500,000th vaccination on May 18, 2021. Signs like this one were on display at the site to mark the milestone. (OHSU/Josh Andersen)

The All4Oregon COVID-19 Vaccination Site is jointly operated by Portlands four major health systems, OHSU, Providence, Kaiser Permanente and Legacy Health. Shown here are some of the senior leaders from three of the sites partner organizations as they marked the site giving its 500,000th vaccination on May 18, 2021. From left to right are: OHSU Health Chief Medical Officer Renee Edwards, OHSU Health Chief Operating Officer Joe Ness, Providence Oregon Chief Operating Officer William Olson; Kaiser Permanente Associate Medical Director Mary Giswold, and Kaiser Permanente Chief Operating Officer Wendy Watson. Other All4Oregon leaders not pictured include Providence Oregon Chief Medical Officer Doug Koekkoek, Legacy Health Interim Chief Medical Officer Melinda Muller, and Legacy Health Chief Operating Officer Trent Green. (OHSU/Josh Andersen)