Pfizer tells US officials it cannot deliver substantial additional vaccines until late June or July

Last summer, Pfizer officials urged Operation Warp Speed ​​to purchase 200 million doses – enough of the two-shot regimen for 100 million people, according to people knowledgeable on the matter who spoke under on condition of anonymity because they were not authorized to do so. discuss the situation. But Warp Speed ​​officials refused, opting for 100 million doses instead, they said. The New York Times first reported that federal officials missed the opportunity when Pfizer offered to sell more doses.