Arroyo Valley High School in San Bernardino will become a second-dose-only vaccination site that will administer Pfizer vaccinations today (Thursday, January 28) and tomorrow (Friday, January 29). The county is working to open additional second dose vaccination sites countywide as the 21- and 28-day windows approach for more people to receive their second dose. Approximately 600 people who have already received their first dose of the Pfizer vaccine were contacted by the county via email starting Monday (January 25). They were notified that they could register for an appointment to get their second dose on either days. Individuals were informed that they must bring their COVID-19 vaccination record card in order to be seen.