A multinational study of over 99 million vaccinated people has identified higher incidences of neurological, cardiovascular, and blood disorder complications than what the researchers expected.The peer-reviewed observational cohort study, published in the Vaccine journal on Feb. 12, aimed to evaluate the risk of 13 adverse events of special interest (AESI) following COVID-19 vaccination. The AESIs spanned three categories — neurological, hematologic (blood), and cardiovascular.It reviewed data collected from more than 99 million vaccinated people from eight nations — Argentina, Australia, Canada, Denmark, Finland, France, New Zealand, and Scotland — looking at risks up to 42 days after getting the shots.The...