Puerto Rico December 16, 2020 9:31 am First Vaccination Administered in Puerto Rico Vaccinations against COVID-19 in Puerto Rico officially began on Tuesday at Ashford Hospital in San Juan. US & World Videos 1:39 Lawrence police cracking down on illegal dirt bikes 1:31 CDC recommends updated Covid shot for everyone ages 6 months and up 2:30 Putting an increase in COVID cases into context 1:41 COVID cluster prompts masking at Beth Israel Deaconess Medical Center 0:50 COVID cluster at hospital prompts return of mask requirement in affected unit