![CDC on Twitter: "Everyone ages 5+ years should get up to date on their COVID-19 vaccines, including a booster for everyone 12+ years when eligible. #COVID19 vaccines continue to undergo the most CDC on Twitter: "Everyone ages 5+ years should get up to date on their COVID-19 vaccines, including a booster for everyone 12+ years when eligible. #COVID19 vaccines continue to undergo the most](https://pbs.twimg.com/media/FOj0G-pXoAobCOw.jpg)
CDC on Twitter: "Everyone ages 5+ years should get up to date on their COVID-19 vaccines, including a booster for everyone 12+ years when eligible. #COVID19 vaccines continue to undergo the most
![COVID-19: Social media and promotional resources for Health Canada and Public Health Agency of Canada - Canada.ca COVID-19: Social media and promotional resources for Health Canada and Public Health Agency of Canada - Canada.ca](https://www.canada.ca/content/dam/phac-aspc/images/services/diseases-maladies/2019-novel-coronavirus-infection/digital-resources/children-vaccine-monitored-1200x1000-eng.jpg)
COVID-19: Social media and promotional resources for Health Canada and Public Health Agency of Canada - Canada.ca
![CDC on Twitter: "v-safe is a smartphone-based vaccine safety monitoring tool that uses text messaging and web surveys to give personalized health check-ins after vaccination. Go to https://t.co/xSRv5i7ajp to get started! https://t.co/JAoEfU7CGP." / CDC on Twitter: "v-safe is a smartphone-based vaccine safety monitoring tool that uses text messaging and web surveys to give personalized health check-ins after vaccination. Go to https://t.co/xSRv5i7ajp to get started! https://t.co/JAoEfU7CGP." /](https://pbs.twimg.com/media/FH4KcdrXsAEjESW.jpg)