New Delhi- Extensive nationwide research conducted by the Indian Council of Medical Research (ICMR) and the All India Institute of Medical Sciences (AIIMS), New Delhi, has found no scientific evidence linking COVID-19 vaccines to sudden unexplained deaths among adults. The findings, based on two large-scale studies, underline that lifestyle factors, pre-existing health conditions, and genetic risks are far more likely causes behind such incidents.
Responding to growing public concern over sudden cardiac deaths, particularly in young adults aged 18 to 45, health agencies initiated detailed investigations to uncover any patterns or causal links. The studies found that COVID-19 vaccines in India are safe and effective, with severe side effects being extremely rare.
The first study, conducted by ICMR’s National Institute of Epidemiology (NIE), spanned May to August 2023 and involved 47 major hospitals across 19 states and union territories. It focused on apparently healthy individuals who died suddenly between October 2021 and March 2023. The conclusion was clear: COVID-19 vaccination did **not** increase the risk of sudden unexplained death.
A second ongoing study by AIIMS New Delhi, in collaboration with ICMR, takes a prospective approach to determine the causes of sudden death in young adults. Early findings reveal that heart attacks (myocardial infarction) remain the leading cause, with no abnormal spike in unusual causes since the pandemic. In many cases, genetic mutations are being identified as contributing factors.
Public health experts have cautioned that unverified claims linking vaccines to sudden deaths are scientifically unfounded and potentially harmful. “Spreading misinformation about vaccines can significantly undermine public trust and lead to vaccine hesitancy, which could have dangerous consequences for collective health,” experts stated.
They stressed that vaccines have been a cornerstone of the country’s battle against COVID-19, saving countless lives during the peak of the pandemic. The continued fearmongering around vaccine safety—without scientific backing—only serves to derail progress.
The Government of India has reiterated its dedication to evidence-based policymaking. Officials emphasized that these studies reflect the transparency and rigor of India’s public health research system, and the findings should reassure citizens about the safety of COVID-19 vaccines.
As the country advances toward a healthier post-pandemic future, the focus remains on addressing real health threats—like lifestyle diseases and inherited conditions—rather than chasing unproven claims. The government continues to encourage vaccination as a vital tool in maintaining public health and protecting vulnerable populations.
