Rare Side Effect Of AstraZeneca's Covishield Explained

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1 May 2024

AstraZeneca's COVID-19 vaccine has been linked to a rare side effect called Thrombosis with Thrombocytopenia Syndrome (TTS)

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This acknowledgement follows a lawsuit filed against the company, alleging serious harm and deaths linked to the vaccine

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Covishield, a vaccine developed by AstraZeneca and Oxford University and manufactured by the Serum Institute of India, can, in rare instances, lead to this condition

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This vaccine was extensively administered throughout India during the Covid-19 pandemic

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Thrombosis with Thrombocytopenia Syndrome (TTS) is a rare condition in which blood clots form in unusual places in the body, and the number of platelets in the blood drops

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Platelets are small cells that help blood to clot, so having too few of them can be dangerous

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The condition was observed in people who received adenoviral vector COVID-19 vaccines, such as Vaxzevria, Covishield (AstraZeneca) and the Johnson & Johnson/Janssen COVID-19 vaccine

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TTS seems to occur because the body's immune system reacts to the vaccine by making antibodies that attack a protein involved in blood clotting

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TTS is classified into 2 tiers by the CDC

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