Millions Are Skipping Their Second Doses of Covid Vaccines

Millions of Americans are not getting the second doses of their Covid-19 vaccines, and their ranks are growing.

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.

Even as the country wrestles with the problem of millions of people who are wary about getting vaccinated at all, local health authorities are confronting an emerging challenge of ensuring that those who do get inoculated are doing so fully.

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.