Mistakes mean Pennsylvania faces shortage of Moderna shots

The error could mean more than 100,000 people will need appointments rescheduled.
A woman receives a dose of Moderna COVID-19 vaccine at the vaccination mega center on February 15, 2021 in Athens, Greece.
A woman receives a dose of Moderna COVID-19 vaccine at the vaccination mega center on February 15, 2021 in Athens, Greece. To curb a resurgence in coronavirus cases, Greece recently expanded a lockdown imposed on metropolitan Athens to apply to other parts of the country, meaning schools, hair salons and non-essential retail shops in those places will close. (Photo by Milos Bicanski/Getty Images) Photo credit Photo by Milos Bicanski/Getty Images

Pennsylvania is facing a temporary shortage of booster shots of the Moderna vaccine after providers mistakenly used them as first doses. State health officials say the error could mean more than 100,000 people will need appointments rescheduled. The second-dose shortage does not affect the Pfizer vaccine. Pennsylvania has been holding second doses in reserve to ensure they will be available for residents who have gotten the initial shot. The state's acting health secretary Alison Beam says inconsistent vaccine supply, confusion about deliveries and a lack of clear communication caused the problem.