Fourth Wave of the U.S. Overdose Crisis

U.S. opioid crisis began in the early 2000s. The current fourth wave involves fentanyl overdoses with stimulants. Resources: https://www.eurekalert.org/news-releases/1001209 https://onlinelibrary.wiley.com/doi/10.1111/add.16318 https://www.cdc.gov/stopoverdose/fentanyl/pdf/fentanyl_fact_sheet_508c.pdf