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$7.4B set to bolster healthcare workforce to fight COVID-19, prepare for future epidemics …Vaccination rates relatively high for older adults, but lag in some areas … Healthier heart links to better problem-solving and reaction time … Interim study suggests oral TXA equally effective in preventing blood loss in joint replacement … Study looks at hip fracture patient characteristics pre- and post-COVID-19 … Novel rehab program improves results for older heart-failure patients, study finds