Medicago Inc.’s COVID-19 vaccine is poised to become the first Western shot to be rejected by the World Health Organization, because of the company’s links to cigarette-maker Philip Morris International Inc.

The Canadian biopharma company’s request for pre-qualification of its Covifenz shot was not accepted, according to the WHO’s guidance document dated March 2. That means the WHO is unlikely to approve the vaccine for emergency use, which would also keep it out of the Covax global vaccine-sharing program.

"Due to its connections — it’s partially owned by Philip Morris — the process is put on hold,” Mariangela Simao, WHO’s assistant director-general for drug access, vaccines and pharmaceuticals, said at a media briefing Wednesday. "The WHO and the U.N. have a very strict policy regarding engagement with the tobacco and arms industry, so it’s very likely it won’t be accepted for emergency use listing.”