Dave Larsen
@dalarsen.bsky.social
Epidemiologist at Syracuse University working on infectious disease surveillance, outbreaks, and response.
Just finished up this short read. I highly recommend.
October 2, 2025 at 5:20 PM
Just finished up this short read. I highly recommend.
Finally mowed the lawn yesterday. Disturbed this bunny nest. Not sure when I'll mow the lawn again.
June 9, 2025 at 12:22 PM
Finally mowed the lawn yesterday. Disturbed this bunny nest. Not sure when I'll mow the lawn again.
🧪#EpiSky
Testing the Waters 8 - call for abstracts extended to March 8.
Testing the Waters 8 - call for abstracts extended to March 8.
February 26, 2025 at 2:10 PM
🧪#EpiSky
Testing the Waters 8 - call for abstracts extended to March 8.
Testing the Waters 8 - call for abstracts extended to March 8.
In the 1950s a staggering 3% of children born in the US did not reach their first birthday. (Updating slides for my global health class this morning).
January 27, 2025 at 1:46 PM
In the 1950s a staggering 3% of children born in the US did not reach their first birthday. (Updating slides for my global health class this morning).
🧪#EpiSky
Save the date! Testing the Waters 8 will be held in Tacoma, Washington. It's a great wastewater-based epidemiology conference.
Save the date! Testing the Waters 8 will be held in Tacoma, Washington. It's a great wastewater-based epidemiology conference.
December 19, 2024 at 1:29 PM
🧪#EpiSky
Save the date! Testing the Waters 8 will be held in Tacoma, Washington. It's a great wastewater-based epidemiology conference.
Save the date! Testing the Waters 8 will be held in Tacoma, Washington. It's a great wastewater-based epidemiology conference.
Second, correlations will improve with more aggregated data. Wastewater samples representing larger communities will better correlate with clinical data. And importantly for risk communication the aggregation of wastewater to a county or regional level will improve correlations with clinical data.
December 13, 2024 at 3:58 PM
Second, correlations will improve with more aggregated data. Wastewater samples representing larger communities will better correlate with clinical data. And importantly for risk communication the aggregation of wastewater to a county or regional level will improve correlations with clinical data.
First, samples taken from a wastewater treatment plant will mask heterogeneity in risk throughout a community, with larger communities experiencing greater heterogeneity in risk. This could lead to over- or under-estimates of local risk of a disease when relying on wastewater surveillance.
December 13, 2024 at 3:58 PM
First, samples taken from a wastewater treatment plant will mask heterogeneity in risk throughout a community, with larger communities experiencing greater heterogeneity in risk. This could lead to over- or under-estimates of local risk of a disease when relying on wastewater surveillance.
The MAUP is best characterized by gerrymandering – adjustments of arbitrary borders lead to large differences in outcomes when aggregating data.
December 13, 2024 at 3:58 PM
The MAUP is best characterized by gerrymandering – adjustments of arbitrary borders lead to large differences in outcomes when aggregating data.
Another great meeting of the New York State Wastewater Surveillance Network. Very lucky to be associated with such fine folks.
November 22, 2024 at 3:22 PM
Another great meeting of the New York State Wastewater Surveillance Network. Very lucky to be associated with such fine folks.
We use standard metrics for evaluating the wastewater surveillance network: coverage, timeliness, and accuracy. More than 200 WWTPs participating, results within 72 hours of sample, and accurate information flowing through the state.
September 25, 2023 at 1:35 PM
We use standard metrics for evaluating the wastewater surveillance network: coverage, timeliness, and accuracy. More than 200 WWTPs participating, results within 72 hours of sample, and accurate information flowing through the state.
In New York State we put the county health department at the center of the surveillance network. With webinars, workshops, and weekly memos we are training them to use wastewater surveillance data to understand infectious disease dynamics.
September 25, 2023 at 1:35 PM
In New York State we put the county health department at the center of the surveillance network. With webinars, workshops, and weekly memos we are training them to use wastewater surveillance data to understand infectious disease dynamics.
Wastewater surveillance for public health is so much more than testing wastewater and posting to a dashboard. When done well it empowers local health departments with understanding on transmission dynamics, enabling them to better respond to the threat.
🧪#episky
journals.lww.com/jphmp/fullte...
🧪#episky
journals.lww.com/jphmp/fullte...
September 25, 2023 at 1:34 PM
Wastewater surveillance for public health is so much more than testing wastewater and posting to a dashboard. When done well it empowers local health departments with understanding on transmission dynamics, enabling them to better respond to the threat.
🧪#episky
journals.lww.com/jphmp/fullte...
🧪#episky
journals.lww.com/jphmp/fullte...