Marijuana workforce drug test positivity continues double-digit increases to keep overall drug positivity rates at historically high levels, finds latest quest diagnostics drug testing index™ analysis

Secaucus, n.j., may 26, 2021 /prnewswire/ -- the covid-19 pandemic did not dampen workforce drug testing positivity for marijuana, which continued to increase last year in the general u.s. workforce, according to a new analysis released today by quest diagnostics (nyse: dgx), the world's leading provider of diagnostic information services.
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