06:17 Can the Johnson & Johnson vaccine cause blood clots?European Medicines Agency: Investigating the connection between the two

The Wuhan pneumonia vaccine developed by Johnson & Johnson of the United States also reported a case of thrombosis, and one person died.  (Associated Press)

The Wuhan pneumonia vaccine developed by Johnson & Johnson of the United States also reported a case of thrombosis, and one person died. (Associated Press)

2021/04/11 06:17

[Real-time news/comprehensive report]After the European Medicines Agency (EMA) determined that AstraZeneca’s (AstraZeneca, AZ) Wuhan pneumonia (new coronavirus disease, COVID-19) vaccine was related to thrombotic symptoms, Johnson & Johnson of America The Wufei vaccine developed by Janssen Pharmaceuticals, a subsidiary of (Johnson & Johnson), also reported symptoms of thrombosis and thrombocytopenia. One of them died. EMA is investigating this.

Bloomberg reported that 4 Johnson vaccine vaccinators have experienced abnormal thrombotic symptoms of thrombocytopenia, and one of them died, similar to the thrombotic symptoms of the AZ vaccine. It is reported that 1 of these 4 thrombosis cases occurred in the vaccine clinical trial stage. At that time, Johnson said that there is no evidence that such symptoms are directly related to vaccination; the other 3 cases occurred in the United States and approved the vaccine. after that.

Public information shows that Johnson’s vaccine was granted emergency authorization in the United States on February 27, becoming the third martial-arts vaccine approved for use in the United States after Pfizer and Moderna. The biggest feature of Jiaosheng vaccine is single-dose vaccination, and its storage and transportation conditions are more relaxed than those of Pfizer and other mRNA vaccines. At present, the Johnson & Johnson vaccine is only administered in the United States. The European Commission has conditionally approved the sales license of the Johnson & Johnson vaccine in March, but it has not yet begun to be used in Europe.

According to the US Centers for Disease Control and Prevention (CDC), as of the 8th, approximately 5 million people in the United States have been vaccinated against the Johnson & Johnson vaccine. The U.S. Food and Drug Administration (FDA) confirmed that it has received reports of thrombosis, and some cases have symptoms of thrombocytopenia at the same time, but no causal relationship with the vaccine has been found. The case is under investigation and evaluation, and it has been provided to EMA related data.

EMA said on the 9th that it is conducting a corresponding evaluation on whether the Johnson & Johnson vaccine is related to thrombosis. Johnson and Johnson issued a statement in response, and is cooperating with regulatory agencies to evaluate rare thrombosis cases, and reiterated that there is no evidence that there is a causal relationship between the Johnson and Johnson vaccination and rare thrombosis cases.

In addition, EMA also notified 5 cases of suspected capillary leakage caused by AstraZeneca vaccine, and will expand the investigation. According to the British Guardian (The Guardian), the patient has symptoms of plasma infiltration from blood vessels into interstitial spaces, which causes edema and lower blood pressure. EMA will conduct further investigations to determine whether such symptoms are related to the AZ vaccine.

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