A large-scale study of over 1 million VA patients found that the 2024-2025 COVID-19 vaccines continue to provide significant protection against major cardiovascular events, with 38% effectiveness against conditions like heart attacks and strokes. The protection was particularly notable in high-risk groups including those over 75 and people with underlying health conditions. The research, published in JAMA Internal Medicine, confirms that the cardiovascular benefits of COVID vaccination persist despite viral evolution and population-level immunity changes.
Background
Previous research had shown that COVID-19 vaccines reduce the risk of cardiovascular complications from COVID-19, but it was unclear if this benefit would persist with updated vaccines and changing population immunity levels.
- Source
- Ars Technica
- Published
- Jun 16, 2026 at 05:04 AM
- Score
- 7.0 / 10