We study the ecological, evolutionary, and within-host dynamics of RNA viruses using quantitative approaches. @EmoryUniversity Department of Biology
Joined January 2020
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10 Photos and videos
25 Mar 2025
Excited to share our recent preprint on quantifying pandemic potential from experimental transmission studies, spearheaded by grad student Elizabeth Somsen in my group and in collab with Troy Sutton & lab at Penn State and Anice Lowen at Emory: biorxiv.org/content/10.1101/….
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13 Mar 2025
Collaboration with Lucas Ferreri and the Lowen lab at Emory to look at influenza virus evolution and dispersal during infection within a host: pnas.org/doi/abs/10.1073/pna…
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13 Mar 2025
Fortunate to collaborate with Rustom Antia and Jim Bull on an analysis focused on the question: Why do respiratory viruses evolve antigenically while viruses undergoing systemic replication do not? watermark.silverchair.com/eo…
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13 Mar 2025
A fun analysis with David Rasmussen focused on seeing if incomplete purifying selection impacts/biases our estimates of epidemiological parameters in phylodynamic analyses: royalsocietypublishing.org/d… (thankfully, it doesn't bias estimates much at all!)
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13 Mar 2025
And while I'm on tweeter (once in a blue moon), here are some relatively recent papers from our group!
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13 Mar 2025
Congratulations to Dr. Yeongseon Park for her successful PhD defense on Friday, March 7, 2025!
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15 Aug 2023
(We think this new approach is preferable to existing approaches - some of which we've developed - because it uses a different subset of viral sites to estimate transmission bottleneck sizes and is less prone to underestimation of bottleneck sizes.)
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15 Aug 2023
We just posted a preprint on a new approach for estimating transmission bottleneck sizes. Spoiler alert: we confirm bottleneck sizes for influenza virus and SARS-CoV-2 to be tiny using the new approach: biorxiv.org/cgi/content/shor…
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31 May 2023
Congratulations @park_yeongseon and @m_a_martin 🎉
29 May 2023
So excited this work led by @park_yeongseon with @KoelleLab
is finally out! We show that you can use sequence data to infer epidemiological dynamics (e.g. R0) of emerging pathogens w/o trees by fitting models to the observed segregating sites trajectories. nature.com/articles/s41467-0…
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Koelle Lab retweeted
10 May 2023
And now with a more accurate title! Also a gift link, so it should not be behind a paywall.
nytimes.com/2023/05/10/scien…
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Koelle Lab retweeted
11 Nov 2022
Our paper on influenza reassortment in mammals is out now on @NatureComms! Congratulations to all our collaborators!rdcu.be/cZtAo @anice_lowen @LucasFerreri1 @KoelleLab @CRP_FLU_UGA @Juaco1802 @Aivlys87 @juergenricht @CEIRRNetwork #LoveVirology
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Koelle Lab retweeted
17 Oct 2022
This week's EEB Thurs Seminar features ALUM Dr Katia Koelle @KoelleLab presenting Using genetic data at multiple scales to understand constraints on viral adaptation. 3pm, 1010 Bio Sci Bldg and Zoom live, see poster
#eventalanche #Genetics #diseases
ALT Poster for Department of Ecology and Evolutionary Biology Seminar Series. Block M. Using genetic data at multiple scales to understand constraints on viral adaptation. Katia Koelle, Professor, Department of Biology, Emory University. Zoom link email eebsemaccess@umich.edu at least 2 hours prior for passcode. Thursday, Oct 20 3pm, 1010 BSB. Hybrid event. Live/virtual. Block M EEB. Drawing of virus cells
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1 Jul 2022
Second PhD defended from the Koelle lab this week was from @m_a_martin. Mike not only did a phenomenal quantity of work, but it was of high quality as well! Mike collaborated with many folks, @SternLab @AnnePiantadosi @Ahmed_HBabiker among others. Congrats!!
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1 Jul 2022
For the second preprint announcement of the day, we’ve updated our earlier manuscript on using segregating sites trajectories of viral sequence data for epidemiological inference, which was led by @park_yeongseon. biorxiv.org/content/10.1101/…
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30 Jun 2022
Our recent work on the variolation hypothesis with regards to SARS-CoV-2 and mask wearing is now up on medRxiv. We show that mask wearing reduces the e probability of infection but does little to reduce severity given infection. medrxiv.org/content/10.1101/…
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30 Jun 2022
This was a highly collaborative project with (undergrad!) Jack Lin, Julie Zhu, Ruston Anita, @anice_lowen, and @dbweissman
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Koelle Lab retweeted
29 Jun 2022
congratulations to Dr. @brent_allman on his amazing PhD defense! i've been very lucky to get to co-advise brent with @KoelleLab
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