The Fakhravac vaccine had received emergency use authorization in Iran but was still undergoing clinical trials to obtain full approval, and the defense ministry, which developed it, was having trouble finding enough participants for those trials.
Iran has been among the countries hardest hit by the pandemic. The official death toll so far is about 125,000, but health officials and independent experts say the true figure is several times higher. Chaotic planning, lack of transparency and official refusal to lock down cities and impose quarantines early in the pandemic led to major surges in infections, hospitalizations and deaths.
When vaccines became available, Iranian officials said they would give priority to domestically made shots, and health officials boasted that they would have the whole population inoculated by the end of the summer and be able to export surplus doses.
The country’s supreme leader, Ayatollah Ali Khamenei, banned American- and British-made coronavirus vaccines, claiming that they had been designed to harm Iranians — a decision that many critics say caused Iran to fall behind on vaccination and led to more illness and death from the virus. Iran has sped up imports in recent months, and the health minister said that about 120 million doses had been obtained from abroad.
About 59 percent of Iran’s 85 million people have received at least one dose of vaccine, and about 30 percent are fully vaccinated, according to official statistics; Iran is not yet giving booster shots on a wide scale.