(CNN) -- Johnson and Johnson is working to extend the shelf-life of its COVID-19 vaccine.
Right now, the vaccine can be stored up to three months at refrigerator temperatures.
This comes amid reports that hundreds of thousands of doses may soon expire. Johnson and Johnson delivered more than 12 million doses in the U.S.
According to the CDC, about 11 million have been administered.
In Ohio, the Governor says 200,000 doses are set to expire at the end of the month.
The White House has said "very, very small fraction" of the COVID-19 vaccine doses sent to state will be unused.
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