ICMR and NCDC confirm COVID-19 vaccines do not cause sudden deaths. National studies attribute fatalities to heart issues, genetics, and undetected health risks

Investigations by the Indian Council of Medical Research (ICMR) and the National Centre for Disease Control (NCDC) show no direct connection between COVID‑19 vaccination and the recent reports of sudden deaths in India.
A Union Ministry of Health and Family Welfare press release notes that several national agencies examined these unexplained fatalities and all reached the same conclusion: the vaccines are not implicated.
ICMR and NCDC stress that India’s COVID‑19 vaccines remain safe and effective, with serious side effects reported only in very rare cases. They add that sudden cardiac deaths can arise from genetics, lifestyle choices, hidden medical conditions, or complications following a COVID‑19 infection.
To probe the issue—especially among adults aged 18–45—the two bodies launched complementary investigations, one retrospective and one prospective.
The first study conducted by ICMR’s National Institute of Epidemiology, this multicentric case‑control study reviewed sudden deaths of apparently healthy individuals between October 2021 and March 2023, using data from 47 tertiary hospitals in 19 states and UTs. It found no evidence that vaccination increases the risk of unexplained sudden death.
The second study- “Establishing the Cause of Sudden Unexplained Deaths in the Young,” an ongoing AIIMS‑ICMR project, tracks cases in real time. Early findings indicate that myocardial infarction (heart attack) remains the leading cause of sudden death in this group, mirroring patterns seen in previous years. Many unresolved cases involve underlying genetic mutations.
Together, these studies give a fuller picture of sudden unexplained deaths in young Indians and confirm that vaccination does not raise the risk, while existing health issues, hereditary factors, and risky lifestyles do.
Experts warn that claims linking vaccines to sudden deaths lack scientific backing and could erode public confidence, potentially fueling vaccine hesitancy and harming public health.
The Government of India reiterates its commitment to rigorous, evidence‑based research to protect the nation’s well‑being.
Published: 02 Jul 2025, 03:20 pm IST
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