US-based Merck halted the development of two of its own coronavirus vaccines in January to instead focus on its two Covid-19 treatments.
Merck & Co Inc will help make rival Johnson & Johnson's single-shot Covid-19 vaccine, the Washington Post reported on Tuesday, citing senior officials from the Biden administration.
President Joe Biden is expected to make an announcement on Tuesday, said the report.
In January, US-based Merck halted the development of two of its own coronavirus vaccines to focus instead on its two Covid-19 treatments.
The company said last month that it was in talks with governments and companies to potentially help with the production of Covid-19 vaccines that had been authorized.
According to the report, the drug manufacturer will dedicate two US facilities to the Johnson & Johnson vaccine.
"Merck remains steadfast in our commitment to contribute to the global response to the pandemic," said the company.
J&J did not respond immediately to Reuter's request for comments.