Health experts blame rapid expansion for vaccine shortages

FILE - In this Jan. 16, 2021, file photo, a sign saying that a COVID-19 vaccine is not yet available hangs at Walgreens in Glenview, Ill. Smaller-than-expected vaccine deliveries from the federal government have caused frustration and confusion and limited states’ ability to attack the outbreak that has killed over 400,000 Americans.(AP Photo/Nam Y. Huh, File)

Mary Jenkins, left, received the COVID-19 vaccine in Paterson, N.J., Thursday, Jan. 21, 2021. The first people arrived around 2:30 a.m. for the chance to be vaccinated at one of the few sites that does not require an appointment. Smaller-than-expected vaccine deliveries from the federal government have caused frustration and confusion and limited states’ ability to attack the outbreak that has killed over 400,000 Americans. (AP Photo/Seth Wenig)

Public health experts on Thursday blamed COVID-19 vaccine shortages throughout the U.S. in part on the Trump administration’s push to get states to vastly expand their vaccination drives to reach the nation’s estimated 54 million people age 65 and older.