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Krijn Paaijmans
Krijn Paaijmans
@vectorologist.bsky.social
Vector ecologist. Mosquito hunter 🦟. Head Innovative Vector Solutions. Assoc prof Arizona State University. Hon prof WITS Research Institute for Malaria. Dutchy in the AZ desert 🌵 All views are my own.
192 followers325 following4 posts
Krijn Paaijmans reposted
Extremely impressive results from large-scale in Singapore - release of Wolbachia-infected male Aedes reduces Dengue risk by 72% Dengue Suppression by Male Wolbachia-Infected Mosquitoes | New England Journal of Medicine share.google/Xrtk9L6emyhx...
Krijn Paaijmans reposted
This research paper is the first time that a tipping point of a switch from a carbon sink to a carbon emission source in tropical rainforests has been identified clearly – not just for one year but for the last 20 years. Cause is a change in the local climate. www.theguardian.com/environment/...
Krijn Paaijmans reposted
Krijn Paaijmans reposted
Want to get the data out of a PDF figure? As in, the actual data – not a rough trace-along-the-lines version? I made an app you might like: adamkucharski.github.io/pdf2plot/ It all started a few years ago... 🧵
Krijn Paaijmans reposted
🦋🌿Hiring 12 x Botanists or Entomologists for 2026 field surveys in England! 4-month, full-time roles from late April to early September. Field sites in Yorkshire, Devon, Warwickshire, Kent/Sussex, Lincolnshire/Cambridge, Essex/Suffolk. Apply now: ceh.wd3.myworkdayjobs.com/en-US/CEH_Ca... 🧪
Krijn Paaijmans reposted
Does predictability matter for adaptation? In fruit flies, predictable thermal variation favors evolved longevity, while unpredictable environments impose survival and reproductive costs—revealing distinct routes to adaptation under climate change. Image: Wikimedia academic.oup.com/evlett/advan...
Krijn Paaijmans reposted
New climate data raises questions about how much the Earth has warmed: https://cnn.it/44YS8pM
Krijn Paaijmans reposted
We are excited to invite abstract submissions for talks and posters for the 2026 Ecology and Evolution of Infectious Diseases meeting at Virginia Tech (June 2-4). Abstract submissions should be made by February 3, 2026 for consideration, using the google form here: cpe.vt.edu/eeid2026/abs...
Krijn Paaijmans reposted
Krijn Paaijmans reposted
#ArtificialIntelligence may be fuelling a surge in letters to scientific journals. A study by Carlos Chaccour and Matthew Rudd finds “prolific debutante” authors likely using #AI to mass-produce submissions. Learn more in @science.org: 🟠https://f.mtr.cool/natqzgbtau #Research #Science
Krijn Paaijmans reposted
New work with my fantastic colleagues, Viki Brookes and @mozziebites.bsky.social - Landscapes associated with Japanese encephalitis virus in Australia reflect the functional biogeography of waterbirds: dx.doi.org/10.1002/ecs2...
Krijn Paaijmans reposted
🚨 DWFP Research Funding Alert! Apply for the DOD FY26 Deployed Warfighter Protection Program. Seek innovative research to protect troops from disease vectors. Max $975K. Pre-Application Due: Nov 5, 2025. Learn more on eBRAP: ebrap.org #DODResearch #VectorControl
Krijn Paaijmans reposted
Our paper Genomic diversity of the African malaria vector Anopheles funestus was published in Science today! It features inversions, selection in action, museum specimens and putative new ecotypes. doi.org/10.1126/scie...
Preprint is out! We investigated the genomic diversity and evolutionary history of Anopheles funestus mosquitoes, one of the main species transmitting human malaria across Africa. Here’s a visual summary. Art by @petrathepostdoc.bsky.social . 1/8 www.biorxiv.org/content/10.1...
Krijn Paaijmans reposted
🚨 NEW: Climate change is already causing 30,000 deaths per year - a global annual economic loss of $100-350B USD - but the true damage is probably 10x higher. Out TODAY in Nature Climate Change: the first systematic look at the science of "health impact attribution" 🔓 www.nature.com/articles/s41...
Krijn Paaijmans reposted
The National Weather Service in Phoenix issued both dust storm and severe thunderstorm warnings as the system pushed into Maricopa County. The weather service warned drivers of near-zero visibility and urged people to "pull aside stay alive." https://cnn.it/45yL3Nt
Krijn Paaijmans reposted
I am back with great news. A project by a former undergrad, Liz Wynne, is now out in publication. In it she discovered a mosquito in the genus Culex that lays eggs from the air (like a Toxorhynchites) and exhibits skip oviposition (spreading eggs around). An amazing discovery! 🦟🍾 rdcu.be/eBkFM
Krijn Paaijmans reposted
🦟🦠 NEW! We looked at every experiment going back to the 1960s, and found that mosquitoes are almost certainly not primary or secondary vectors of Oropouche virus - a common claim in both the scientific literature and public health communication. #EpiSky #IDSky 😷🧪 journals.plos.org/plosntds/art...
Krijn Paaijmans reposted
🧵1/ Introducing ExpBites, a lightweight #rstats 📦 to analyze mosquito biting exposure according to hourly activities and locations of human and #mosquitoes. Built for modeling true expected #bednet efficacy.🦟⛺️ 📦 GitHub: buff.ly/tImDQdv 🎚️ Shiny app: buff.ly/t9oMOwv #malaria #anopheles
Krijn Paaijmans reposted
As we try to understand how climate change impacts malaria @isaacstopard.bsky.social looked how daily temperature fluctuations impact development in mosquitoes. Quite a bit it seems, but still unclear in wild mosies. Lovely data from Antoine Sanou but we need more! www.nature.com/articles/s42...
Krijn Paaijmans reposted
Mosquitoes drink nectar (not just blood), but do they prefer nectar from some plants over others? A new research review shows mosquitoes do indeed have nectar preferences, which researchers say can inform placement of attractive targeted sugar baits in mosquito control efforts.
Krijn Paaijmans reposted
PhD position (Karlsruhe, Germany) Nowcasting and short-term forecasting of infectious diseases with Johannes Bracher at @kit.edu More details: http://iddjobs.org/jobs/2296
Krijn Paaijmans reposted
PhD position/PostDoc (Cape Town, South Africa) Research Officer in Infectious Disease Modelling at University of Cape Town More details: http://iddjobs.org/jobs/2294
Krijn Paaijmans reposted
Our study ‘The global human impact on biodiversity’ is out in Nature! Through an unprecedented synthesis (2133 studies!) we show that humans are not only shrinking species numbers—but reshaping entire communities across the planet. 🌍🌐🐟🌿🪲 www.nature.com/articles/s41...
Krijn Paaijmans reposted
[preprint] Determinants of presence and abundance of the tiger #mosquito Aedes albopictus 🦟 in the city of Montpellier, France - role of urban veg 🌿 - lagged effects of meteo🌦️ - micro-climate🌡️ 🌐🧪
Investigating the role of urban vegetation alongside other environmental variables in shaping Aedes albopictus presence and abundance in Montpellier, France https://www.biorxiv.org/content/10.1101/2025.03.20.644277v1
Krijn Paaijmans reposted
🦟🧪Our paper on larval competition between Aedes aegypti and Aedes mediovittatus, a Caribbean endemic, is out! In it, we show that the endemic appears to be the superior competitor, and this may explain why Ae. aegypti is restricted to cities on the island. academic.oup.com/jme/article-...
Krijn Paaijmans reposted
A late #MESACorrespondent addition for today and tomorrow's 2nd @womeninmalaria.bsky.social Conference! 📍Spot Akua Obenewaa Yirenkyi Danquah, reporting from Ghana, added to the announcement image below! Reports added daily here➡️ mesamalaria.org/reports/2nd-... Stay up-to-date!
Krijn Paaijmans reposted
Evolutionary genetics studies are often used to predict how species may adapt to climate change. In their recent Review, deMayo & Ragland discuss why these studies are only somewhat useful for predicting how invertebrates will respond to climate change journals.biologists.com/jeb/article/...
Krijn Paaijmans reposted
Results show ongoing plateau in malaria infection prevalence & case incidence in sub-Saharan Africa, with no consistent improvement since 2015. But malaria deaths continued to decline in sub-Saharan Africa after 2015, except for the COVID-19-impacted yrs of 2020–22 www.thelancet.com/journals/lan...
Krijn Paaijmans reposted
We look forward seeing you March 11 for Prof. Mordecai's webinar "More than warming: Climate change is transforming the landscape of vector-borne diseases". Register: www.zoomgov.com/webinar/regi... @mauriciolnogueira.bsky.social @utmbhealth.bsky.social @sbvirologia.bsky.social
Krijn Paaijmans reposted
I know the job market is tough out there right now, but we are currently hiring at Harris County Mosquito and Vector Control. We have positions open including technicians, entomologists, and even director. www.governmentjobs.com/careers/harr...
Krijn Paaijmans reposted
Doing the unthinkable: The deep cuts to the #CDC's workforce today are expected to decimate the Epidemic Intelligence Service, a program that has trained public health rapid responders for decades. Envy of the world. Poof! www.statnews.com/2025/02/14/t...
Krijn Paaijmans reposted
They're legendary disease detectives: The CDC's Epidemic Intelligence Service. Very little may be left of it after today, writes @helenbranswell.bsky.social www.statnews.com/2025/02/14/t...
This includes one of my former graduate students. Sad. I am lost for words.
The abrupt terminations of more than 1,000 employees, including new Epidemic Intelligence Officers, across CDC are deeply disturbing. For more than 70 years, EIS officers have served on America’s front line as its disease detectives, ready at a moment’s notice to respond to emerging outbreaks.
Krijn Paaijmans reposted
Excellent coverage of our recent work finding that mosquitoes may be able to adapt to warming! www.the-scientist.com/mosquitoes-a...
Final day at #EntSoc24. My team and @SilvieHuijben's team are enjoying the science talks, and are happy to meet old and new friends. Thanks @entsocamerica.bsky.social for organizing a wonderful conference in our hometown. 🌵 ☀️
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