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Last Update: 10/26/2026 at 11:33 PM EST
Climate-Linked Zoonotic Disease Risk
Coverage from Nature, Climate Central, and others
Climate and environmental change can reshape the conditions in which animal-borne diseases emerge and spread.
Rodent-borne infections such as Andes hantavirus and New World arenaviruses illustrate how temperature, rainfall, drought, wildfire, habitat disruption, and land-use change may alter reservoir populations and human exposure. Risk assessments increasingly combine climate projections, animal habitat suitability, population density, and epidemiological data to identify possible expansion into non-endemic areas. The subject also includes One Health surveillance, early warning, ecological monitoring, community and occupational protection, and coordinated outbreak response.
Looking Back
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Important
Research describes how climate drivers modify transmission of vector-borne, waterborne, and respiratory pathogens and shift outbreak patterns and predictability.
5/20/2026 • Climate Science & Impacts • General
Climate Central analyzed 1970-2025 NOAA temperature data across 239 U.S. cities and found longer West Nile virus transmission seasons driven by warmer conditions.
7/22/2026 • Climate Science & Impacts • General
The San Gabriel Valley mosquito district is releasing Wolbachia-infected male Aedes aegypti in Southern California during the 2020s to reduce populations amid increasing climate-related disease risk.
9/17/2026 • Climate Science & Impacts • General
Recent research finds that climate change is increasing infectious-disease and antibiotic-resistance risks through warming, drought, flooding, and ecosystem shifts in the United States and globally.
9/10/2026 • Climate Science & Impacts • General
US health officials investigated record cyclosporiasis and other foodborne outbreaks during summer 2025 as warming conditions, imported produce, and federal staffing cuts increased risks nationwide.
9/1/2026 • Climate Science & Impacts • General
CDC researchers documented a northward shift in U.S. Naegleria fowleri exposure locations from 1978 through 2018 as warming conditions potentially broadened suitable freshwater habitats.
8/28/2026 • Climate Science & Impacts • General
Tara Stewart Merrill and Pieter Johnson published a review showing that drought can alter infectious disease risks worldwide by changing water conditions and animal movement.
8/21/2026 • Climate Science & Impacts • General
Connecticut reports mosquito surveillance detections of West Nile virus and additional species, while climate-driven northward mosquito expansion raises vector-borne disease risk into New England and beyond.
7/16/2026 • Climate Science & Impacts • General
Jonathan Mingle reports climate and land-use driven tick expansion in the eastern United States and Canada, increasing health risks including alpha-gal syndrome and Lyme disease and motivating coordinated control programs.
7/11/2026 • Climate Science & Impacts • General
American Academy of Microbiology reports that infectious disease attribution to climate change is still limited by data gaps, despite clear links for dengue, cholera, and West Nile.
5/15/2026 • Climate Science & Impacts • General
Stanford researchers link climate driven dengue surge in Peru during the 2023 cyclone.
3/17/2026 • Climate Science & Impacts • General
Scientists report climate-linked shifts in microbial pathogens as warming waters spread Vibrio infections farther north and lengthen seasonal risk in the United States.
5/25/2026 • Climate Science & Impacts • General
Temperature-dependent immune changes are linked to climate-driven pathogen and parasite range expansion, increasing wildlife disease risk in regions including Canada, the United States, and Australia.
4/30/2026 • Climate Science & Impacts • General
During a Natural Habitat Evanston speaker series, Mark Clifton described how climate-driven heat and rainfall are increasing mosquito, tick and rat risks around Chicago.
9/7/2026 • Climate Science & Impacts • General
Climate change is increasing infectious disease risks across humans, animals and plants through altered environmental conditions, with disproportionate consequences for vulnerable populations and low- and middle-income countries.
8/12/2026 • Climate Science & Impacts • General
The World Health Organization assessed recent hantavirus-associated cases linked to South American cruise routes as a low public health risk amid broader climate-sensitive disease concerns.
8/8/2026 • Climate Science & Impacts • General
Researchers at the University of Colorado Anschutz Medical Campus published a Nature Reviews Microbiology review linking climate change to shifting risks for waterborne pathogens, informing public health adaptation planning.
7/23/2026 • Climate Science & Impacts • General
A One Health editorial in Animal Diseases ties climate-driven temperature and flooding effects to genomic evidence of rising Salmonella antimicrobial resistance genes.
7/10/2026 • Climate Science & Impacts • General
A European analysis using 426 cases finds Dirofilaria repens infection risk increases with summer warmth and precipitation, especially in the Carpathian Basin and eastern Balkans.
6/30/2026 • Climate Science & Impacts • General
Brown University researchers use influenza and weather data across 81 locations to project how temperature and humidity may reshape flu outbreaks under climate change.
6/29/2026 • Climate Science & Impacts • General
Stanford webinar in June described how habitat loss and climate-related environmental change increase zoonotic spillover risks for outbreaks including Ebola and hantavirus.
6/15/2026 • Climate Science & Impacts • General
Hospitals across India report dengue infections appearing weeks before the monsoon as climate-related changes extend mosquito transmission beyond the usual seasonal window.
6/11/2026 • Climate Science & Impacts • General
Nature researchers reported 11 years of experimental grassland warming increased antibiotic-resistance gene abundance and multi-antibiotic resistance, linking climate warming to antimicrobial resistance spread.
6/9/2026 • Climate Science & Impacts • General
Researchers analyzed 480,000 Salmonella genomes from 139 countries and found climate-driven temperature and rainfall changes associated with higher antimicrobial resistance gene levels.
6/1/2026 • Climate Science & Impacts • General
Researchers project climate-driven mosquito range shifts will expand chikungunya risk northward by 2100, with hotspots in Europe and northeastern North America.
5/27/2026 • Climate Science & Impacts • General
WHO reported 11 hantavirus cases and three deaths linked to MV Hondius in May and warned additional cases may follow incubation and transmission dynamics.
5/23/2026 • Climate Science & Impacts • General
In Oct. 2025, a report by the American Academy of Microbiology and American Geophysical Union linked climate-driven temperature and precipitation shifts to infectious disease range and seasonality changes.
5/22/2026 • Climate Science & Impacts • General
Duke University researchers Erica Washington and Asiya Gusa examine how warming-driven heat adaptation in Cryptococcus may affect human infection risk, including studies after Hurricane Helene flooding in North Carolina.
5/18/2026 • Climate Science & Impacts • General
Argentina reported increased hantavirus infections in 2025 as drought and extreme rainfall are described as heightening rodent-human contact during travel-related outbreaks.
5/17/2026 • Climate Science & Impacts • General
Scientists say climate-driven changes to rodent ecology and extreme weather can raise hantavirus outbreak risk, with attribution requiring dedicated studies.
5/14/2026 • Climate Science & Impacts • General
Researchers link 2026 Andes virus outbreak risk to climate-driven rodent range expansion, projecting broader New World arenavirus spread across South America by 2060.
5/13/2026 • Climate Science & Impacts • General
Clark University Master’s students in Valle de Bravo, Mexico, report rising temperatures, reservoir contamination, and severe heat-related health and water-access risks based on sampling and resident surveys.
5/13/2026 • Climate Science & Impacts • General
Climate health commentary links warming, heat and air quality to increased non communicable disease risk and calls for funded adaptation in healthcare and communities.
5/8/2026 • Climate Science & Impacts • General
UC Davis researchers project that climate-driven rodent population shifts could expand New World arenavirus spillover risk across South America over the next 20 to 40 years.
5/4/2026 • Climate Science & Impacts • General
Researchers in 2026 report drought-driven soil antibiotic concentration that can accelerate antimicrobial resistance and correlate with resistant hospital infections across 116 countries.
4/18/2026 • Climate Science & Impacts • General
A stochastic Ross-Macdonald modeling study shows climate-linked environmental variability can non-linearly change mosquito-borne outbreak probability, intensity, and duration.
4/13/2026 • Climate Science & Impacts • General
California Institute of Technology researchers report drought linked soil antibiotic concentration and hospital resistance correlations across 116 countries.
4/6/2026 • Climate Science & Impacts • General
Hunters, scientists, and government partners report Arctic muskox mortality on Victoria, Banks, and Ellesmere islands linked to Erysipelothrix rhusiopathiae and compounded by climate stressors.
4/2/2026 • Climate Science & Impacts • General
Researchers in Peru and the United States report climate-linked warmer, wetter conditions increased dengue epidemic risk after a 2023 cyclone and El Nino.
3/17/2026 • Climate Science & Impacts • General
MedicalXpress details how UC San Diego, UNICEF, and partners launched the DIRE forecasting platform in 2026 to help Brazil and Peru anticipate dengue and malaria resource needs, without involving heat pump technologies.
2/1/2026 • Climate Science & Impacts • General
Angela Fanelli and European Commission JRC researchers used machine learning and satellite data to map climate-linked zoonotic outbreak risk hotspots covering 9.3 percent of land area.
4/26/2026 • Climate Science & Impacts • General
Experts in India link climate-driven temperature and rainfall shifts to dengue and influenza transmission changes, expanding risk beyond traditional monsoon seasons.
7/17/2026 • Climate Science & Impacts • General
WHO-led researchers project climate warming will expand human overlap with venomous snakes by 2050 and 2090, increasing snakebite health risks.
5/26/2026 • Climate Science & Impacts • General
CDC Emerging Infectious Diseases documented a seven-week dengue transmission chain in Los Angeles County in fall 2024 as climate-driven mosquito suitability enabled local spread from traveler introductions.
5/14/2026 • Climate Science & Impacts • General
In the United States, higher tick-bite emergency-room visits coincide with climate-driven tick range expansion and multi-pathogen carriage, increasing Lyme and related infection risk.
5/2/2026 • Climate Science & Impacts • General
Stanford researchers link Peru 2023 dengue outbreak to climate driven extreme rainfall.
3/17/2026 • Climate Science & Impacts • General
Interesting
U.S. public health researchers said in 2025 that climate-driven changes are increasing vector-borne disease risks nationwide while federal, state, and local adaptation planning remains inconsistent.
8/6/2026 • Adaptation & Resilience • General
Modeling for Singapore, China, the European Union, and the United States suggests Wolbachia incompatible-insect technique can suppress wildtype Aedes from 2050 to 2100 warming if dispersal-sensitive release strategies are used.
6/30/2026 • Adaptation & Resilience • General
Researchers contributing to a climate-infectious-disease Focus issue examine how climate and ecological changes alter pathogen risks worldwide, including cholera transmission in Dhaka, Bangladesh.
8/12/2026 • Climate Science & Impacts • General
A preprint study models climate-driven expansion of Aspergillus fungal risk across Europe and increased azole resistance from crop and clinical antifungal use.
3/25/2026 • Climate Science & Impacts • General
Researchers found over 50 years that climate change increased mosquito-friendly days across more than 200 U.S. cities, especially in the Northeast and Southeast.
8/26/2026 • Climate Science & Impacts • General
Researchers projected that climate variability and climate change could alter dengue and Aedes aegypti distributions by 2050, supporting climate-informed surveillance and adaptation planning.
8/9/2026 • Climate Science & Impacts • General
Researchers reported that climate change and global trade are expanding disease-carrying mosquito ranges, with new Aedes albopictus populations documented in Portugal, France, and Greece between June 2025 and April 2026.
7/29/2026 • Climate Science & Impacts • General
Beth Carlton and University of Colorado Anschutz researchers report climate-driven warming and extreme weather shift waterborne disease patterns and complicate outbreak control in the United States.
7/24/2026 • Climate Science & Impacts • General
Georgetown University researchers synthesized 65 dengue studies from 2020 to 2024, finding warming and urbanization increase transmission risk.
7/22/2026 • Climate Science & Impacts • General
San Mateo County Mosquito & Vector Control District explains how climate change may affect mosquito development, habitat, and vector-borne disease risk in San Mateo County, California.
7/22/2026 • Climate Science & Impacts • General
Climate Central reports 95% of 239 U.S. cities saw increased mosquito disease days from 1970 to 2025, linked to warmer temperatures and greater West Nile virus transmission potential.
7/22/2026 • Climate Science & Impacts • General
Researchers at the University of Colorado Anschutz reviewed evidence that climate-driven heat, rainfall extremes, drought, and hurricanes are shifting cyclospora and other waterborne disease risks.
7/22/2026 • Climate Science & Impacts • General
Climate Central reports that warming temperatures have extended West Nile virus transmission-suitable days across most major U.S. cities since 1970.
7/22/2026 • Climate Science & Impacts • General
In Türkiye, rising temperatures are shifting mosquito and tick seasonality earlier, increasing risks for dengue, chikungunya, West Nile Fever, and tick-borne diseases including CCHF.
6/22/2026 • Climate Science & Impacts • General
Stefan Iwasawa of BCCDC said warmer British Columbia temperatures could increase mosquito generations and pathogen transmission risk, with surveillance pilots after 2024 Whistler encephalitis cases.
6/7/2026 • Climate Science & Impacts • General
Anna Pintor and collaborators published a habitat-overlap modeling study on April 2, projecting climate-driven snake-human overlap changes by 2090 across Africa, Asia, North America, and China.
4/2/2026 • Climate Science & Impacts • General
A Research Square preprint models climate-driven spread of drug-resistant Aspergillus across Europe while parts of Africa may become less suitable for survival.
3/27/2026 • Climate Science & Impacts • General
A Research Square preprint modeled future spread of Aspergillus species under climate scenarios, linking warming and azole fungicide use to higher drug resistance and infection and crop risks.
3/24/2026 • Climate Science & Impacts • General
In upstate New York, SUNY Upstate Medical University tick testing shows about one-third of ticks carry pathogens as warming expands tick survival and activity across the Northeast.
7/27/2026 • Climate Science & Impacts • General
U.S. researchers and public-health officials are documenting expanding tick- and mosquito-borne disease risks as climate change and development increase exposure across regions including Long Island.
8/20/2026 • Climate Science & Impacts • General
CDC and Michigan public health officials report a widening Cyclospora cayetanensis outbreak during summer, with hot conditions potentially affecting seasonal foodborne risk.
7/14/2026 • Climate Science & Impacts • General
ASM and AGU released an October 2025-developed report on climate-linked infectious disease shifts, calling for stronger detection and attribution research and resilient global preparedness.
5/15/2026 • Climate Science & Impacts • General
Drew Maciel and scientists describe Maine tick-driven moose deaths and rising tick-bite health risks during spring as earlier tick seasons track US temperature warming.
5/14/2026 • Climate Science & Impacts • General
A Science in One Health study links rising MENA temperatures to expanding tick habitats and calls for One Health surveillance and cross-border collaboration to control tick-borne diseases.
4/28/2026 • Adaptation & Resilience • General
Researchers in a Nature Microbiology study link drought-related aridity to higher antibiotic resistance in soil and hospital infections as climate warming expands dry conditions.
3/23/2026 • Climate Science & Impacts • General
African governments should strengthen hantavirus surveillance because limited diagnostics and climate plus land-use change could increase rodent-driven spillover risk.
5/18/2026 • Climate Science & Impacts • General
UK research indicates drought-linked soil drying could accelerate antibiotic resistance, raising risk for antibiotic-resistant infections in healthcare settings.
4/15/2026 • Climate Science & Impacts • General
India's parliamentary health panel reported in September that monsoon conditions, ecological change, and urbanization sustain vector-borne disease transmission across Northeast India.
9/13/2026 • Climate Science & Impacts • General
Arkansas public-health agencies and researchers are documenting rising alpha-gal syndrome reports in 2026 as warmer conditions and land-use change expand lone star tick exposure.
9/2/2026 • Climate Science & Impacts • General
Institut Pasteur reported in the 2020s that climate change is expanding mosquito-borne disease transmission in mainland France and increasing projected yellow fever risks in Africa.
8/29/2026 • Climate Science & Impacts • General
Farmers across the United States are reporting greater tick exposure and illness as warmer winters expand tick activity in farms and forest-edge habitats.
8/13/2026 • Climate Science & Impacts • General
Dr. Peter Chin-Hong links hotter US summers to extended Cyclospora infectivity, while CDC reports 1,645 confirmed cyclosporiasis cases across 34 states as of July 13.
7/15/2026 • Climate Science & Impacts • General
Vermont public health officials reported rising Lyme disease in 2025, linking increased deer tick exposure to climate-driven range shifts, longer activity during winter thaws, and suburban development.
6/26/2026 • Climate Science & Impacts • General
Mirza Dikari Kusrini said climate change and land-use conversion may increase snake-human encounters by shifting snake behavior, habitat, and prey near settlements.
6/8/2026 • Climate Science & Impacts • General
Georgia Department of Public Health and University of Georgia experts report warmer-season tick activity increases in Georgia, with local weather shaping seasonal versus year-round patterns.
6/2/2026 • Climate Science & Impacts • General
Researchers modeled chikungunya spread using IPCC scenarios and geo-tagged records, projecting expansion into temperate North America and Europe by 2100.
5/27/2026 • Climate Science & Impacts • General
Climate change is extending tick activity and increasing tick-borne disease risks for humans and livestock in the United States as warmer conditions persist.
5/27/2026 • Climate Science & Impacts • General
Eleni Galanis and coauthors in CMAJ report climate change increases risks for emerging tick- and mosquito-borne diseases in Canada, including dengue and chikungunya near southern Ontario.
5/19/2026 • Climate Science & Impacts • General
CDC reports increased tick activity in the U.S. Northeast and Midwest amid warmer temperatures, coinciding with higher emergency room visits for tick bites.
5/18/2026 • Climate Science & Impacts • General
Dr. John Galgiani at the University of Arizona says climate-linked drought and heavy rain patterns can expand Valley Fever exposure as airborne Coccidioides spores move beyond the Desert Southwest.
5/13/2026 • Climate Science & Impacts • General
May 2026 hantavirus cases among cruise passengers are linked to modeling showing climate change could increase rodent-borne virus spread risk in South America by 2060.
5/13/2026 • Climate Science & Impacts • General
Argentina reported 101 hantavirus cases and 32 deaths during the current season, nearly doubling from last year as climate-linked ecosystem changes increase rodent exposure.
5/10/2026 • Climate Science & Impacts • General
Saravanan Thangamani of SUNY Upstate reports warming-related lone star tick range expansion associated with rising alpha-gal syndrome and red meat allergy risk in the US.
6/16/2026 • Climate Science & Impacts • General
Researchers including Robert Corrigan found that rat populations increased across 16 cities as rising temperatures extended breeding seasons, while Alberta recorded five infestations in 2025 after decades of coordinated control.
8/25/2026 • Climate Science & Impacts • General
Researchers including Robert Corrigan found that warmer winters are increasing rat populations and associated health risks across 16 cities, while Alberta's prevention program maintained only five infestations in 2025.
8/25/2026 • Climate Science & Impacts • General
Climate-linked drought reduced mosquito populations across parts of the United States in 2020s conditions, while concentrated breeding sites increased localized West Nile virus risks in Arizona, Colorado, and Utah.
8/10/2026 • Climate Science & Impacts • General
Climate change may increase cyclospora and other foodborne contamination risks in agricultural regions through warmer temperatures, altered water supplies, wastewater reuse, and intense runoff.
7/30/2026 • Climate Science & Impacts • General
Researchers from the UK, France, Australia, Switzerland, and China reported climate-associated increases in salmonella antibiotic resistance genes from 1940 to 2023 across 139 countries.
5/26/2026 • Climate Science & Impacts • General
In Ushuaia, Argentina, a cruise ship Antarctic voyage ended after an Andes hantavirus outbreak tied to drought and heavy rainfall altered rodent-human exposure risk.
5/12/2026 • Climate Science & Impacts • General
MV Hondius stopped in the course of a voyage from Ushuaia, Argentina, after an Andes hantavirus outbreak in April caused deaths and new infections, with climate-driven drought and rainfall shifts cited by researchers.
5/12/2026 • Climate Science & Impacts • General
Additional
Argentina-linked hantavirus cases on a cruise in 2026 are discussed in the context of warmer temperatures expanding rodent ranges and transmission opportunities.
5/14/2026 • Policy, Politics & Governance • General
Avian Flu Diary / Michael CostonA post reports a review linking global warming to higher fungal infection risk, citing U.S. Candida auris incidence rising over the past decade.
7/4/2026 • Climate Science & Impacts • General
Researchers report rising alpha-gal allergy cases across Australia, the United States, Denmark, and Japan as warming temperatures and expanding deer populations may increase tick exposure.
7/31/2026 • Climate Science & Impacts • General
Researchers report drought-linked soil drying increases antibiotic resistance gene prevalence in soil and correlates with more resistant hospital pathogens in drier regions.
3/24/2026 • Climate Science & Impacts • General