NIH: A single skills-based class relieves lower back pain … Still no mandate, but Pennsylvania wants 80% of SNF workers vaccinated by October … Federal scientists develop faster COVID-19 test … APIC calls on governors to drop politics, promote vaccination, masking … New CDC vaccination policy for immunocompromised may open door to ‘vaccine chaos’: report … UK studies arthritis drug Actemra as treatment for acute COVID-19 … NIH director sees no signs of letup in steeply rising delta variant case count