Johnson & Johnson COVID-19 vaccine has been pulled from the U.S. amid health concerns.

Johnson & Johnson’s COVID-19 vaccine, a single-shot alternative to other pharmaceutical companies’ two-dose series, is “no longer available” in the United States, health officials said.

The last of the government’s J&J vaccine stock expired May 7, according to the Centers for Disease Control and Prevention.

“Dispose of any remaining Janssen COVID-19 Vacci…