RARE CASES

Link between single-dose Johnson & Johnson Covid vaccine and rare blood clots ‘possible’, EU regulators say

REGULATORS in Europe have said that there is a possible link between rare blood clots and the Johnson & Johnson coronavirus vaccine.

The European Medicines Agency (EMA) today concluded that a warning should be added to the product description.

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The EMA today said that this is a possible link between the jab and rare blood clotsCredit: AFP

It comes after rollout of the sing-use jab was last week paused in the US.

The rollout of the jab in Europe was also delayed last week and the EU had been due to receive 55 million doses of the jab.

The EMA today concluded that unusual blood clots associated with low levels of blood platelets would be listed as a rare side effect.

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 have been given the J&J jab.

Out of seven million, there have been just eight reports from the US of the serious blood clots.

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Specific risk factors have not yet been confirmed but all patients were under the age of 60 and all cases were confirmed within three weeks of vaccination.

The majority of those affected were women.

Symptoms of a rare blood clot

Experts at the EMA say that you should seek medical help in the three weeks after receiving the J&J vaccine if you experience any of the following symptoms:

  • shortness of breath
  • chest pain
  • leg swelling
  • persistent abdominal (belly) pain
  • neurological symptoms, such as severe and persistent headaches or blurred vision
  • tiny blood spots under the skin beyond the site of the injection

The cases had typically occurred in unusual sites such as the veins in the brain - this is also known as cerebral venous sinus thrombosis (CVST).

They also occurred in the abdomen - also known as splanchnic vein thrombosis and in arteries, with low levels of blood platelets and sometimes bleeding.

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The experts today said that the cases reviewed were of a similar nature to those that occurred in patients having had the Oxford/AstraZeneca vaccine.

The UK has 30 million doses of the J&J jab on order and it uses the same technology as the AstraZeneca jab.

Experts today continued to say that the benefits of the jab far outweigh the risks.

Prof Jonathan Ball, Professor of Molecular Virology, University of Nottingham, said: "These side effects are very similar to those reported for AstraZeneca Covid-19 vaccines, which does suggest that it is the inactivated Adenovirus delivery system that might be causing the problems. 

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