File photo shows a medic administering Covaxin, an Indian government-backed experimental COVID-19 vaccine, to a health worker during its trials, at the Gujarat Medical Education & Research Society in Ahmedabad. Image Credit: REUTERS

Brasilia: Brazilian prosecutors are seeking the immediate suspension of purchases of India’s COVID-19 vaccine Covaxin, according to a document seen by Reuters on Friday, one day after the Health Ministry signed a contract to purchase 20 million doses.

The vaccine made by private Indian company Bharat Biotech has yet to be backed up with Phase III clinical trial results, the prosecutors at the Federal Audit Court, known as the TCU, argued in seeking an injunction.