A pharmacist on the Hartford Hospital in fills a syringe with the Johnson & Johnson COVID-19 vaccine.
Joseph Prezioso/Getty Images
- The shelf life for Johnson & Johnson Covid-19 vaccines has been prolonged to 4-and-a-half months from three months.
- Only 11 million of the 21 tens of millions doses of J&J vaccines within the US have been administered.
- The US now has a serious stockpile of extra doses, highlighting the rising vaccine disparity between rich and poorer nations.
Johnson & Johnson stated on Thursday the US Food and Drug Administration had authorised an extension for the shelf lifetime of its Covid-19 vaccine from three months to 4-and-a-half months.
The information comes as tens of millions of doses of the one-shot vaccine, which is saved at fridge temperatures, have been in peril of expiring and being tossed.
“The decision is based on data from ongoing stability assessment studies,” the company stated in an announcement concerning the FDA approval.
According to information from the Centers for Disease Control and Prevention, 21 million doses of the vaccine have been distributed throughout the United States, whereas solely 11 million have been administered.
Ohio Governor Mike DeWine warned this week that 200 000 doses in his state would expire by 23 June.
The FDA granted emergency use authorisation to the vaccine in February.
Key promoting level
While not as efficient at stopping symptomatic Covid-19 because the mRNA vaccines developed by Pfizer and Moderna, the J&J vaccine, primarily based on adenovirus vector know-how, was nonetheless present in a serious trial to be 85 % efficient at stopping extreme types of the illness.
That determine rose to 100% 28 days after the dose. The incontrovertible fact that the vaccine required just one shot was a key promoting level for concentrating on arduous-to-attain populations.
But uptake slowed dramatically after US authorities paused the vaccine for 10 days in April over security fears.
Authorities consider the J&J vaccine carries an elevated threat for a sort of uncommon however critical blood clotting discovered most frequently in ladies aged 18-49. The situation, characterised by having low platelets, is known as vaccine-induced thrombotic thrombocytopenia (VITT).
The United States now has a serious stockpile of extra doses, highlighting the rising vaccine disparity between rich and poorer nations.
President Joe Biden, looking for to reclaim international management on the pandemic, introduced Wednesday that the US will purchase and donate 500 million doses of the Pfizer vaccine for the remainder of the world.