NDEWS Hotspot Alerts

NDEWS Hotspot Alerts is a dynamic notification system that quantifies the degree to which the observation deviates from the expected range of values over an 84-day window provided by biospatial.io. Alerts are updated bi-weekly and limited to US states with statewide partnerships with biospatial.io: Alabama, Alaska, Arkansas, California, Colorado, Florida, Georgia, Idaho, Illinois, Kansas, Kentucky, Maine, Michigan, Mississippi, Montana, New Mexico, New York, Rhode Island, South Carolina, Tennessee, Utah, Virginia, Wisconsin, and Wyoming.

NDEWS Hotspot Alerts November 24–30, 2022: Opioid, heroin, methamphetamine, and non-opioid 911 dispatches

This week’s NDEWS Hotspot Alert​s ​report ​includes 27 counties with higher-than-expected drug-related 911 dispatch counts over the previous 7-day period. View the full report hereClick here to read more about NDEWS Hotspot Alerts.

NDEWS Hotspot Alerts: Counties with above-expected counts for drug-related 911 dispatches October 27 – November 2, 2022

In this week’s NDEWS Hotspot Alerts report, 21 counties in 9 states were identified as having above-expected counts for drug-related 911 dispatches over the previous 7-day period. View the full alert here.

NDEWS Hotspot Alerts October 20–26, 2022: Opioid, heroin, methamphetamine, and non-opioid 911 dispatches

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This week’s NDEWS Hotspot Alert​s ​report ​includes 21 counties with higher-than-expected drug-related 911 dispatch counts over the previous 7-day period. View the full report here.

NDEWS Hotspot Alerts October 13–19, 2022: Opioid, heroin, methamphetamine, and non-opioid 911 dispatches

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This week’s NDEWS Hotspot Alert reported two counties with 911 dispatch counts higher than 10. San Francisco, CA had 23 methamphetamine-related 911 dispatches, and Salt Lake, UT had 10 non-opioid-related 911 dispatches. Higher counts were reported for 15 US counties. View the full report here.

NDEWS Hotspot Alerts October 6–12, 2022: Opioid, heroin, methamphetamine, and non-opioid 911 dispatches

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NDEWS Hotspot Alerts is a dynamic notification system of biospatial.io that quantifies the degree to which observed 911 dispatch rates for drug-related events deviate from expected ranges of values. This week’s report identifies counties with above-expected drug-related 911 dispatches over the past week. View the full report here.

NDEWS Hotspot Alerts: Opioid, heroin, methamphetamine, and non-opioid 911 dispatches September 17, 2022

NDEWS Hotspot Alerts is a dynamic notification system of biospatial.io that quantifies the degree to which observed 911 dispatch rates for drug-related events deviate from expected ranges of values. View the full report here.

NDEWS Hotspot Alerts in states with full coverage: Opioid, heroin, methamphetamine, and non-opioid 911 dispatches August 25 – 31, 2022

During the seven day period from August 25 – August 31, 2022, seventeen counties had higher-than-expected rates of drug-related dispatches. View the full report here.

Past alerts:

April 9-28, 2022

March 26 – April 8, 2022

March 11-25, 2022

March 1-10, 2022

911 Dispatch Information

911 Dispatch type Description of dispatch dispatch involves
Opioid-related Based on the Enhanced State Opioid Overdose Surveillance (ESOOS) criteria as defined by the state of Rhode Island, intended to detect incidents involving opioid overdose. Opioid overdose
Heroin-related Based on the Enhanced State Opioid Overdose Surveillance (ESOOS) criteria as defined by the state of Rhode Island, intended to detect incidents involving heroin overdose. Heroin overdose
Non-opioid-related Based on the Virginia Department of Health criteria for incidents involving non-opioid overdoses. Non-opioid overdoses
Methamphetamine-related Based on incidents involving methamphetamine due to terms and phrases found in the record narrative and chief complaint elements. Methamphetamine overdose

The National Drug Early Warning System (NDEWS) is funded by the National Institute on Drug Abuse (U01DA051126) to the University of Florida (PI: Cottler; Co-Is: Goldberger, Nixon, Striley), New York University (Co-I: Palamar), and Florida Atlantic University (Co-I: Barenholtz).