Doses of the Johnson & Johnson COVID-19 vaccine will drop by 86% next week after one of the company's manufacturers released a stockpile and those have been distributed. (Michael M. Santiago/Getty Images) There will be 86% fewer Johnson & Johnson vaccine doses allocated to states next week, new data from the Centers for Disease Control and Prevention show, highlighting the company's yo-yoing vaccine supply from week to week. But next week's dip in supply isn't exactly the setback it appears to be. It's the other side of a recent surge in Johnson & Johnson doses. The surge occurred because one of Johnson & Johnson's third party manufacturers was finally able to release its stockpile.