Mildred Matthews, 4, of Beaverton, Oregon, came to OHSU Doernbecher Children’s Hospital on June 25, 2022, with her mother, Suzanne Gray, to receive her first dose of the Moderna COVID-19 vaccine. Mildred was smiling and confident until the needle came close to her skin, when she showed signs of worry. But Mildred’s fear quickly evaporated thanks to her mom’s calming presence. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, looks over a book as she waits for her COVID-19 vaccine appointment. She was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, checks out the fish tanks at OHSU Doernbecher. She was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks) 

Josephine “JoJo” Schmidt, 2, checks out the fish tanks at OHSU Doernbecher. She was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, washes her hands before getting her vaccine. She was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

Josephine “JoJo” Schmidt, 2, was talkative until Kathy Guzman, C.M.A., stuck her in the left leg with a vaccine-filled needle. Afterward, she was comforted by her parents, Mark Schmidt and Stephanie Schmidt, who is director of operations of OHSU’s Women’s & Children’s division. (OHSU/Christine Torres Hicks)

About 650 children 5 years through 6 months old were scheduled to receive their first doses of the Moderna COVID-19 vaccine on Saturday, June 25, 2022, at OHSU Doernbecher Children's Hospital in Portland. Children were greeted by music, toys, bubbles and friendly OHSU Dl staff as they arrived at the vaccination clinic. After receiving their vaccinations, children received stickers, hugs and cheers. 

The Pfizer-BioNTech and Moderna COVID-19 vaccines for children as young as 6 months old were recently granted emergency use authorizations, and are recommended by the Federal Drug Administration, Centers for Disease Control and Prevention and Western States Scientific Safety Review Workgroup. (OHSU/Christine Torres Hicks)

About 650 children 5 years through 6 months old were scheduled to receive their first doses of the Moderna COVID-19 vaccine on Saturday, June 25, 2022, at OHSU Doernbecher Children's Hospital in Portland. Children were greeted by music, toys, bubbles and friendly OHSU Dl staff as they arrived at the vaccination clinic. After receiving their vaccinations, children received stickers, hugs and cheers. 

The Pfizer-BioNTech and Moderna COVID-19 vaccines for children as young as 6 months old were recently granted emergency use authorizations, and are recommended by the Federal Drug Administration, Centers for Disease Control and Prevention and Western States Scientific Safety Review Workgroup. (OHSU/Christine Torres Hicks)

About 650 children 5 years through 6 months old were scheduled to receive their first doses of the Moderna COVID-19 vaccine on Saturday, June 25, 2022, at OHSU Doernbecher Children's Hospital in Portland. Children were greeted by music, toys, bubbles and friendly OHSU Dl staff as they arrived at the vaccination clinic. After receiving their vaccinations, children received stickers, hugs and cheers. 

The Pfizer-BioNTech and Moderna COVID-19 vaccines for children as young as 6 months old were recently granted emergency use authorizations, and are recommended by the Federal Drug Administration, Centers for Disease Control and Prevention and Western States Scientific Safety Review Workgroup. (OHSU/Christine Torres Hicks)

David Leslie, 2, son of Ben Leslie and Megan Furnari, M.D., M.S., quickly recovered after briefly getting teary-eyed when he received his first dose of the Moderna COVID-19 vaccine at OHSU Doernbecher Children’s Hospital on June 25, 2022. Furnari is an assistant professor of pediatrics (neonatology) in the OHSU School of Medicine. (OHSU/Christine Torres Hicks)

David Leslie, 2, son of Ben Leslie and Megan Furnari, M.D., M.S., quickly recovered after briefly getting teary-eyed when he received his first dose of the Moderna COVID-19 vaccine at OHSU Doernbecher Children’s Hospital on June 25, 2022. Furnari is an assistant professor of pediatrics (neonatology) in the OHSU School of Medicine. (OHSU/Christine Torres Hicks)

David Leslie, 2, son of Ben Leslie and Megan Furnari, M.D., M.S., quickly recovered after briefly getting teary-eyed when he received his first dose of the Moderna COVID-19 vaccine at OHSU Doernbecher Children’s Hospital on June 25, 2022. Furnari is an assistant professor of pediatrics (neonatology) in the OHSU School of Medicine. (OHSU/Christine Torres Hicks)

David Leslie, 2, son of Ben Leslie and Megan Furnari, M.D., M.S., quickly recovered after briefly getting teary-eyed when he received his first dose of the Moderna COVID-19 vaccine at OHSU Doernbecher Children’s Hospital on June 25, 2022. Furnari is an assistant professor of pediatrics (neonatology) in the OHSU School of Medicine. (OHSU/Christine Torres Hicks)

Atticus and Gwendolyn Tanski Arbogast, both 4, danced in bubbles after receiving their first dose of the Moderna COVID-19 vaccine. The siblings’ parents are Adam Arbogast and Mary Tanski, M.D., M.B.A. Tanski is an associate professor of emergency medicine in the OHSU School of Medicine. (OHSU/Christine Torres Hicks)

Atticus and Gwendolyn Tanski Arbogast, both 4, danced in bubbles after receiving their first dose of the Moderna COVID-19 vaccine. The siblings’ parents are Adam Arbogast and Mary Tanski, M.D., M.B.A. Tanski is an associate professor of emergency medicine in the OHSU School of Medicine. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Zachary Lee, 13 months, of Portland, received his first dose of the Moderna COVID-19 vaccine as dad, Denny Lie, and mom, Tzu-Hsueh Huang, comforted him on June 25, 2022, at OHSU Doernbecher Children’s Hospital. (OHSU/Christine Torres Hicks)

Mildred Matthews, 4, of Beaverton, Oregon, came to OHSU Doernbecher Children’s Hospital on June 25, 2022, with her mother, Suzanne Gray, to receive her first dose of the Moderna COVID-19 vaccine. Mildred was smiling and confident until the needle came close to her skin, when she showed signs of worry. But Mildred’s fear quickly evaporated thanks to her mom’s calming presence. (OHSU/Christine Torres Hicks)

Mildred Matthews, 4, of Beaverton, Oregon, came to OHSU Doernbecher Children’s Hospital on June 25, 2022, with her mother, Suzanne Gray, to receive her first dose of the Moderna COVID-19 vaccine. Mildred was smiling and confident until the needle came close to her skin, when she showed signs of worry. But Mildred’s fear quickly evaporated thanks to her mom’s calming presence. (OHSU/Christine Torres Hicks)

Mildred Matthews, 4, of Beaverton, Oregon, came to OHSU Doernbecher Children’s Hospital on June 25, 2022, with her mother, Suzanne Gray, to receive her first dose of the Moderna COVID-19 vaccine. Mildred was smiling and confident until the needle came close to her skin, when she showed signs of worry. But Mildred’s fear quickly evaporated thanks to her mom’s calming presence. (OHSU/Christine Torres Hicks)

Mildred Matthews, 4, of Beaverton, Oregon, came to OHSU Doernbecher Children’s Hospital on June 25, 2022, with her mother, Suzanne Gray, to receive her first dose of the Moderna COVID-19 vaccine. Mildred was smiling and confident until the needle came close to her skin, when she showed signs of worry. But Mildred’s fear quickly evaporated thanks to her mom’s calming presence. (OHSU/Christine Torres Hicks)

Mildred Matthews, 4, of Beaverton, Oregon, came to OHSU Doernbecher Children’s Hospital on June 25, 2022, with her mother, Suzanne Gray, to receive her first dose of the Moderna COVID-19 vaccine. Mildred was smiling and confident until the needle came close to her skin, when she showed signs of worry. But Mildred’s fear quickly evaporated thanks to her mom’s calming presence. (OHSU/Christine Torres Hicks)