Covid vaccines and blood clots: Experts warn little evidence for concern - NBC News2021-03-16-1615889052jehovahwitness (-10)(1)in #thisjustinnewsnew-11968 • 3 years ago Covid vaccines and blood clots: Experts warn little evidence for concern - NBC News (Image not shown due to low ratings)Images were hidden due to low ratings.Show #thisjustinnewsnew.11968