![Image of nurses' hands at computer keyboard](https://www.mcknights.com/wp-content/uploads/sites/5/2021/10/GettyImages-620924951-860x484.jpg)
J&J shipment of 15 million vaccines halted due to manufacturing error … NIH: Preventive treatment slows eye damage in diabetes … Unhealthy gums tied to higher systolic blood pressure in healthy adults … Feds to distribute free COVID self tests in program aimed at reducing community spread … B.1.1.7 COVID spreading rapidly in United States: study