WASHINGTON – Food & Drug Administration and the Centers for Disease Control and Prevention officials are ordering a pause in the use of Johnson & Johnson’s COVID-19 vaccine after reports that six women between the ages of 18 and 48 developed unusual types of blood clots 6 to 13 days after receiving the vaccine.

This pause will last until the FDA and CDC complete their review, which is expected to take several days.

The Biden Administration’s COVID-19 Response Coordinator Jeff Zients says the J&J vaccines only made up 5% of the total of vaccines administered so far in the U.S. so a pause on it won’t have a big impact on the U.S. govt’s ability to get shots in arms. The White House said Tuesday that the U.S. has ramped up to 3M shots per day being administered.

These reactions are extremely rare, as nearly 7,000,000 people have received the Johnson & Johnson vaccine in the United States to date.

People who received the vaccine in the last 3 weeks should look for any symptoms of these unusual clots, including severe headaches, abdominal or leg pain, and shortness of breath, and contact their medical provider if symptoms develop. People who don’t have a medical provider can call 2-1-1 to connect with a healthcare provider.

Tuesday morning the Los Angeles County Department of Public Health announced ‘out of an abundance of caution’ that is following the recommendation of the FDA and the CDC to pause the use of Johnson & Johnson vaccine.

Vaccine providers in Los Angeles County will contact patients about rescheduling or providing a new appointment for Pfizer or Moderna vaccine.

In Sacramento Tuesday, Gov. Gavin Newsom said that California will also temporarily stop administering the Johnson & Johnson COVID-19 vaccine.

Newsom reiterated the FDA and CDC officials saying the stoppage was “out of an abundance of caution” and noted that Johnson & Johnson only accounts for about 4% of the total supply the state has recently received from the federal government.