![Close up image of a caretaker helping older woman walk](https://www.mcknights.com/wp-content/uploads/sites/5/2021/10/GettyImages-173807841-860x484.jpg)
First case documented of vaccine-induced blood clot treated with a heparin alternative … Researchers urge improvements in kidney failure predictions for chronically ill elders … People 105 or older may live longer due to efficient DNA repair, study finds … In-hospital COVID mortality declined in 2020, but reasons unclear