Federal health officials and an independent oversight board accused AstraZeneca of presenting the world with potentially misleading information about the effectiveness of the company’s Covid-19 vaccine, an extraordinary blow to the credibility of a company whose product has been seen as critical to the global fight against the pandemic.
In a two-page letter to AstraZeneca and federal authorities on Monday, an independent panel of medical experts that was helping oversee the vaccine’s clinical trial in the United States said the company had essentially cherry-picked data that was “most favorable for the study as opposed to the most recent and most complete.”
AstraZeneca acknowledged on Tuesday morning that a press release about its U.S. coronavirus vaccine trial was based on data through Feb. 17, and promised to release more complete results that are "consistent with" the interim data within the next 48 hours.
LONDON (AP) — AstraZeneca’s COVID-19 vaccine provided strong protection against sickness and eliminated hospitalizations and deaths from the disease across all age groups in a late-stage study in the United States, the company announced Monday.
Some countries in the European Union have temporarily suspended use of the AstraZeneca COVID-19 vaccine as a precautionary measure based on reports of rare blood coagulation disorders in persons who had received the vaccine. Other countries in the EU – having considered the same information - have decided to continue using the vaccine in their immunization programmes.
Vaccination against COVID-19 will not reduce illness or deaths from other causes. Thromboembolic events are known to occur frequently. Venous thromboembolism is the third most common cardiovascular disease globally.
In extensive vaccination campaigns, it is routine for countries to signal potential adverse events following immunization. This does not necessarily mean that the events are linked to vaccination itself, but it is good practice to investigate them. It also shows that the surveillance system works and that effective controls are in place.
Germany, France and Italy temporarily suspended the use of AstraZeneca’s Covid-19 vaccine on Monday, joining a growing list of nations that paused use of the vaccine in recent days over concerns that it might be tied to blood clots.
Leading public health agencies, including the World Health Organization, say that millions of people have received the vaccine without experiencing blood clotting issues, and they caution that experts have not found a causative link between the vaccine and the conditions. The company has also defended the vaccine as safe, amid the flurry of suspensions.
