Vaccine expiration is based on data submitted to regulators by the manufacturer that proves how long the shot stays at the appropriate intensity.
Washington-Johnson & Johnson said Thursday that US regulators have extended the expiration date of millions of COVID-19 vaccines by another six weeks.
According to the company, a Food and Drug Administration review concluded that shots were safe and effective for up to four and a half months. The announcement comes after state officials have warned that many unused doses in storage will expire by the end of the month.
Vaccine expiration is based on data submitted to regulators by the manufacturer that proves how long the shot stays at the appropriate intensity. The FDA initially approved the use of J & J vaccines for up to 3 months after manufacture when stored at normal refrigerated levels. However, J & J said the FDA has extended the period to four and a half months, based on data from ongoing studies assessing vaccine stability.
The FDA is considering the expiration dates of three licensed vaccines as companies continue to test batch samples for months after the shot was first deployed.
This extension helps maintain vaccine supply even if the rate of new injections continues to decline. The country made an average of about 800,000 new injections per day last week. This is down from a daily high of nearly 2 million two months ago. Government officials are increasing the number of incentives to encourage shots, from paid holidays to $ 1 million lottery prizes.
According to the center, the delay in vaccination reveals that the United States will not be able to meet President Joe Biden’s goal of partially immunizing 70% of U.S. adults by July 4. became. For disease control and prevention.
J & J vaccines were highly anticipated due to their one-time prescription and refrigeration requirements for easy shipping. The shot was expected to play an important role in vaccination campaigns in rural areas and low-income countries where medical infrastructure is limited.
However, rival pharmaceutical companies Pfizer and Moderna have already supplied enough to meet US demand, with more than 129 million Americans fully vaccinated with two doses of the company. Have received. By comparison, only 11 million Americans have been vaccinated with J & J Shots.
By the end of the month, the United States will announce plans to donate 500 million Pfizer vaccines for global use by the end of next year, in addition to the 80 million doses already promised.
J & J’s vaccination in the United States has also been hit by pollution problems at its Baltimore plant, which supports the production of shots. After FDA tests found multiple problems in April, the facility was closed and none of the vaccines produced there were distributed.
AP Health Writer Linda A. Johnson contributed to this story
Johnson & Johnson COVID vaccine has been extended
Source link Johnson & Johnson COVID vaccine has been extended