[Blitzful raid! The official announcement of the vaccine giant: global offline! What's the secret?] On May 8 local time, AstraZeneca, a British pharmaceutical company, announced that the company had begun to offline COVID-19 vaccine worldwide. The reasons given by the company are "commercial reasons" and vaccine surplus. The COVID-19 vaccine, named Vaxzevria, is one of the main Covid-19 vaccines in the world. Since January 2021, it has supplied more than 3 billion doses, which once brought huge profits to AstraZeneca. It is worth noting that on the eve of the announcement of the global withdrawal, AstraZeneca admitted that its COVID-19 vaccine had caused rare side effects and caused great panic. The company recently admitted in court documents that COVID-19 Vaccine Vaxzevria will cause rare adverse coagulation and low platelet count and other side effects.