Global warming may increase the risk of disease for animals

Global warming may increase the risk of disease for animals

New York: Changes in climate may increase the risk of infectious disease in animals, with the possibility that these diseases can spread to humans, warriors, researchers.
studyPublished in the journal Science supports a phenomenon known as the “thermal mismatch hypothesis”, the idea that the greatest risk for infectious disease in animals adapted to cold climates – such as polar bears – increases in temperature. Occurs in the form.
The hypothesis proposes that small organisms such as pathogens act at a wider range of temperatures than larger organisms, such as hosts or animals.
“Understanding how the spread, severity, and distribution of animal infectious diseases may change in the future has reached a new level as a result of the global pandemic caused by SARS-CoV-2, a pathogen that appears to originate from wildlife. , ” What was said study Co-author Jason Rohr from the University of Notre Dame in the US.
“Given that most infectious diseases occur in wildlife, this is another reason for implementing mitigation strategies to mitigate climate change,” Rohr said.
The research team collected data from more than 7,000 surveys of host-parasite systems of various animals in all seven continents to provide a diverse representation of animals and their pathogens in aquatic and terrestrial environments.
study Have been shown that pathogens found in warm places outperform their animal hosts in cold climates because warm-adapted animals perform poorly.
Similarly, germs found in cold places thrive at warm temperatures, while cold-adapted animals are less tolerant of heat.
Researchers collected historical temperature and precipitation records at the time and place of each survey and long-term climate data for each location to understand how temperature affects animal disease risk in different climates, and these patterns How animals and pathogens differ depending on symptoms. .
study It was also revealed that cold-blooded animals had a tendency to lend stronger support to the thermal mismatch hypothesis than warm-blooded animals.
Subsequently, he coupled his model to global climate change estimates to predict which animal infectious diseases risk may change the most.
Analysis suggests that global warming will eliminate infectious disease, as well as decrease of animal infectious diseases in the lowland tropics and increase in the highland tropics, temperate and cold regions of the planet.

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