New Delhi:

The Supreme Court will hear a petition on a rare side-effect associated with the COVID-19 vaccine developed jointly by British pharma giant AstraZeneca and Oxford University, manufactured by the Serum Institute of India and sold, in this country, as Covishield. 

A date for the hearing has not been set but Chief Justice DY Chandrachud acknowledged the issue, which includes demands for an expert panel to investigate the side-effect and for the government to provide compensation for families of those who may have died after taking the drug. An early hearing of the petition, though, has been ruled out.

Specifically, the petitioner has demanded the expert panel probe both the side-effect and other potential risks, and that this investigation be monitored by a retired Supreme Court judge. The petition claims instances where those who took the vaccine also became disabled, and wants directions to the government to provide compensation for them too.

Last month AstraZeneca said its vaccine could, in rare cases, cause TTS, or thrombosis with thrombocytopenia syndrome, a condition that leads to blood clots and low platelet count. 

The company is facing class-action lawsuits in the United Kingdom that were triggered by a complaint from Jamie Scott, who claims he suffered a permanent brain injury after a blood clot that formed after he was injected with the vaccine in April 2021.

READ | AstraZeneca Makes Big U-Turn, Admits Covishield Can Cause Rare Side Effects

AstraZeneca initially contested the claim but later told a UK court that “the AZ vaccine can, in very rare cases, cause TTS…”.

There are over 50 cases before the courts with claimed damages up to 100 million pounds.

In a statement issued last week AstraZeneca expressed sympathy for those who have lost loved ones or reported health problems, but reiterated its commitment to patient safety and adherence to “stringent standards to ensure the safe use of all medicines…”

READ | “Sympathy Goes Out…”: AstraZeneca Amid Side Effects Concerns

News of a possible side-effect of the Covishield vaccine – widely administered in India – have led to concerns, but medical experts and a fact-check by The Healthy Indian Project indicate the claim is only half-true; i.e., while the risk of TTS is true, the probability is “very rare”.

Medical experts have pointed out that side-effects are a not uncommon feature of most, if not all, vaccines, even those that have been in use for decades, and these are “usually very minor and of short duration”, according to the World Health Organization.

Fact Check | Are Indians Who Got Covishield Vaccine Susceptible To TTS?

Regulatory agencies worldwide, including the WHO, continue to maintain that the benefits of vaccination far outweigh the risks posed by exceedingly rare side effects.

The Covishield vaccine uses a viral vector platform rather than mRNA technology. 

This vaccine employs a modified chimpanzee adenovirus, ChAdOx1, to transport the COVID-19 spike protein into human cells. While this cold virus cannot effectively infect recipients, it effectively “teaches” the immune system to defend against similar viruses.

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New Delhi:

British pharma giant AstraZeneca has admitted that its Covid vaccine can cause a rare side effect, The Telegraph (UK) has reported. Covishield can cause, in rare cases, a condition that leads to blot clots and low platelet count, the vaccine-maker has said in court documents.

Covishield, developed by AstraZeneca and Oxford University during the pandemic, was produced by the Serum Institute of India and widely administered in the country.

AstraZeneca is facing a class action lawsuit in the UK over claims that its vaccine caused deaths and severe injuries in several cases. Victims in as many as 51 cases in the UK High Court are seeking damages up to 100 million pounds.

Jamie Scott, the first complainant in the case, had alleged that he had received the vaccine in April 2021 which caused him a permanent brain injury after a blood clot. This has prevented him from working and the hospital even told his wife thrice that he’s going to die, he claimed.

AstraZeneca has contested the claims, but admitted in one of the court documents in February that Covishield can “in very rare cases, cause TTS”, the report said.

TTS (Thrombosis with Thrombocytopenia Syndrome) causes blood clots and a low blood platelet count in humans.

“It is admitted that the AZ vaccine can, in very rare cases, cause TTS. The causal mechanism is not known…Further, TTS can also occur in the absence of the AZ vaccine (or any vaccine). Causation in any individual case will be a matter for expert evidence,” AstraZeneca said.

AstraZeneca made its admission in a legal defence to Scott’s claim, which may lead to payouts to the victims and grieving relatives.

The latest admission also contradicts the company’s 2023 stand, in which it had told the lawyers of Jamie Scott that “we do not accept that TTS is caused by the vaccine at a generic level”.

AstraZeneca has, however, denied the lawyers’ claims that the vaccine is “defective” and its efficacy “vastly overstated”.