New Delhi [India], medical expert Dr Rajeev Jayadevan said thrombocytopenia syndrome (TTS) refers to clots in the blood vessels, and it occurs in very rare cases after the use of certain types of vaccines, admitting that While Covid vaccines have helped prevent many deaths, Jayadevan, who is co-president of the National Indian Medical Association (IMA Covid Task Force in Kerala), said reports of such cases have also been highlighted in several reports. "TTS is thrombosis with thrombocytopenia syndrome, which is basically a clot in the blood vessels of the brain or elsewhere, accompanied by a low platelet count. It occurs in very rare cases after certain types of vaccines and, according to WHO, the adenovirus vector Vaccines are particularly rarely associated with this condition,” he told ANI, “Although COVID vaccines have prevented many deaths, reports of extremely rare but potentially serious immune mediated events have also been distinguished.” This comes in the wake of recent admission by pharmaceutical company AstraZeneca that its Covid vaccines Covishield and Vaxzeveria "can cause TTS in very rare cases." According to multiple UK media reports, AstraZeneca has submitted admission documents to court in connection with a case alleging that the vaccine it developed with Oxford University's Serum Institute of India caused deaths and serious injuries in dozens of cases. India produced COVID-19. The name of the vaccine is Covishield but mRNA platform is not used in it. It has been prepared using the viral vector platform.The vaccine, a chimpanzee adenovirus – ChAdOx1 – has been modified to carry the COVID-19 spike protein into human cells. This cold virus is basically unable to infect the receiver, but may well teach the immune system to prepare a mechanism against such viruses. The same technology was used to produce vaccines for viruses such as Ebola amid reports in the UK media about clots in blood vessels. The Serum Institute o India did not answer this question, especially as in 2023, the World Health Organization (WHO) in its report had said that TT has emerged as a new adverse event after vaccination in individuals who have had COVID-19. -19 non-replicant adenovirus vector-based vaccine. Vaccines This refers to the AstraZeneca COVID-19 ChAdOx-1 vaccine and the Johnson Johnson (J&J) Janssen COVID-19 Ad26.COV2-S vaccine “TTS is a serious and life-threatening adverse event."WHO has issued this interim emergency guidance to raise awareness of TTS in the context of COVID-19 vaccination and help healthcare providers in the assessment and management of potential TTS cases," WHO's 2023 statement said. However, Union Health Minister Mansukh Mandaviya had said in 'ANI Dialogue - Navigating India's Health Sector' in March 2024 that ICMR has conducted a detailed study which shows that COVID- The 19 vaccine is not responsible for heart attacks, and factors such as a person's lifestyle and excessive drinking could be one of the underlying causes, Mandaviya said, adding, "If someone has a stroke today, they think it's Covid." It's because of the vaccine. ICMR has conducted detailed studies to show that the (Covid) vaccine is not responsible for heart attacks.”