The United States has signed a contract worth just over $1 billion with Johnson & Johnson for 100 million doses of a potential Covid-19 vaccine. reports the U.S. currently has contracts with "several pharmaceutical companies as part of Operation Warp Speed", a program designed to develop, test and distribute a COVID-19 vaccine as quickly as possible once available.

The deal with Johnson & Johnson also allows for an addition 200 million doses of a COVID-19 vaccine to be purchased.

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"Johnson & Johnson’s vaccine, developed by subsidiary Janssen Pharmaceutical Companies, has shown positive preclinical results. Testing of their vaccine is currently underway with human trials in the United States and Belgium."