Nearly 8% of people in the U.S. who got initial Pfizer or Moderna shots missed their second doses.
State officials said they are rushing to keep that number from growing even more.
The New York Times reported:
More than five million people, or nearly 8 percent of those who got a first shot of the Pfizer or Moderna vaccines, have missed their second doses, according to the most recent data from the Centers for Disease Control and Prevention. That is more than double the rate among people who got inoculated in the first several weeks of the nationwide vaccine campaign.
The reasons vary for why people are missing their second shots. In interviews, some said they feared the side effects, which can include flulike symptoms. Others said they felt that they were sufficiently protected with a single shot.
A number of vaccine providers have canceled second-dose appointments because they ran out of supply or didn’t have the right brand in stock.
Walgreens, one of the biggest vaccine providers in the United States, sent some people who had their first shot of the Pfizer or Moderna vaccine to get the second shot at pharmacies that only had the other vaccine on hand.
Several Walgreens customers said in interviews that they scrambled, in some cases with help from pharmacy staff, to find somewhere to get the correct second dose. Others gave up.
In some cases, problems with shipments or scheduling played a role in people missing their second doses. Some vaccine providers have had to cancel appointments because they did not receive expected vaccine deliveries. People have also reported having their second-dose appointments canceled or showing up only to find out that there were no doses available of the brand they needed.
While millions of people have missed their second shots, the overall rates of follow-through, with some 92 percent getting fully vaccinated, are strong by historical standards. Roughly three-quarters of adults come back for their second dose of the vaccine that protects against shingles.