L'émission continue de gaz à effet de serre présente un fort impact sur les maladies infectieuses humaines. © Mike Mareen, Adobe Stock

Climate change could exacerbate more than half of human infectious diseases

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While it is relatively well accepted that the climate change increases the risk of transmission of pathogenic diseases to humans, especially because of the continuous emission of To understand global warming, we need to understand its connection with the natural phenomenon of…” data-image=”https: //cdn.futura -sciences .com/buildsv6/images/midioriginal/b/9/f/b9f0872ae1_50084221_ges2011-poilaumenton-flickr-01.jpg” data-url=”https://news.google.com/planete/definitions /climatology-gas- greenhouse effect- 5381/” data-more=”Read more”>greenhouse gasesthe quantification this risk remained unclear. On the one hand, the emission of greenhouse gases increases the climate risks of the earth system – for example global warming, waves and waves.
Note that we offshore tend to be from…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/7/a/0/7a0ae575e0_132287_vague.jpg” data- url=” https://news.google.com/planete/definitions/ocean-vague-15182/” data-more=”Read more”>waves en Physicists refer to heat as thermal energy. In the international system, it is therefore measured in joules (J). Heat more closely corresponds to a transfer…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/7/3/5/735709801b_92578_chaleur.jpg” data-url=” https :/ /news.google.com/sciences/definitions/physics-heat-15898/” data-more=”Read more”>warmth, Forest firesshe precipitation Extremes or sea level rise. On the other hand, there is a wide variety of pathogenic diseases (bacteria, virusanimals, plants, MushroomsThere are several groups of protozoa:
Rhizopods: Amoebas that use pseudopodia to move; Actinopods, from…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/a/c/a /aca15554a8_117416_protozoan-cilia .jpg” data-url=”https:/ /news.google.com/sante/definitions/biologie-protozoan-240/” data-more=”Read more”>protozoaetc.) and modes of transmission (vector, air, direct contact, etc.)

The researchers of the study published in the journal nature climate change conducted a systematic search of more than 70,000 scientific articles. Here are examples of the impacts of 10 climate hazards – sensitive to emissions Greenhouse gases – on already known human infectious diseases. Result: 58% (ie 218 out of 375) of the infectious diseases that humanity is confronted with worldwide were at some point caused by at least one climate hazard (eg Zika, the dengue feverthe lung infection or even the malaria).

Over 1,000 unique transmission paths

In all, there are no fewer than 1,006 unique transmission routes through which climatic hazards have led to pathogenic diseases. ” There are simply too many diseases and modes of transmission for us to believe we can truly adapt to climate change. “, said in a press release Camilo Mora, Professor of Geography College of Social Sciences and first author of the study. ” This underscores the urgent need to reduce greenhouse gas emissions worldwide. »

The research team has made it available to the public an interactive website which shows every connection between a climate hazard and a case of illness. The tool thus enables users to query specific hazards, pathways and disease groups and visualize the available evidence.

Pathogens and people displaced by climatic hazards

The researchers explain these results by saying that climatic hazards are bringing pathogens closer to humans. In fact, the climatic changes This range is limited to a maximum range consistent with environmental conditions… papio-cynocephalus-c-chauvin-wikimedia-domaine-public.jpg” data-url=”https://news.google.com/planete/definitions /botanique-aire-repartition-6103/” data-more=”Read more”>offer Vectors and pathogens, with better conditions for reproduction and life cycles. For example, warming and changes in precipitation are associated with the expansion of the range of mosquito bites and female mosquitoes.
The female bites animals (and males) to feed on their blood.
Females have special mouthparts for sucking blood with a kind…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/5/9/7 /5979f4fa2c_89354_shutterstock-tacio -philip-sansonovski .jpg” data-url=”https://news.google.com/planet/definitions/mosquito-insects-15677/” data-more=”Read more”>mosquitoesTicks, fleas, birds and many more mammals involved in epidemics of viruses.

Also, there are no exact characteristics for…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/b/9/7/b97fffc285_117970_tempete-littoral. jpg” Data-URL=”https://news.google.com/planete/definitions/climatologie-storm-14551/” data-more=”Read more”>storms, flooding and sea level rise have resulted in the displacement of people and therefore more cases of gastroenteritis, salmonellosis, respiratory diseases and skin diseases – among others. These populations are sometimes forced to live in the emphasize and with insufficient conditions to fight these infections.

It should be noted that 16% of diseases (ie 63 out of 286) were reduced by climatic hazards. However, most of these diseases were sometimes made worse by another hazard…or the same hazard.

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