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Climate change likely to increase diarrheal disease hospitalizations by 2100s

Temperature increases of 1.5 °C to 2 °C could increase hospitalizations by 4.5% to 7.4% in Dhaka

2024-09-26
(Press-News.org) By 2100, hospitalizations from diarrheal diseases are predicted to increase in the city of Dhaka in Bangladesh as a result of climate change, even if global warming stays under 2 degrees Celsius. Farhana Haque and colleagues from University College London, London School of Hygiene and Tropical Medicine and icddr,b report these findings in a new study published September 26 in the open access journal PLOS Neglected Tropical Diseases.

As one of the world’s most densely population cities, Dhaka deals with a high burden of diarrheal diseases. While some studies have looked at how weather affects diarrhea in Bangladesh, few have examined the future impact of climate change. A warmer climate is expected to worsen this public health issue by making the city hotter and exacerbating water quality issues.

In the new study, researchers estimated the risks posed by diarrheal diseases under various global warming scenarios. They looked to see if daily rainfall, humidity and temperature in Dhaka affected rates of hospitalizations from diarrheal disease, using data from about 3 million diarrhea cases treated at a major hospital in Dhaka from 1981 to 2010. Statistical analysis revealed that higher daily temperatures significantly increased the risk of diarrhea for all age groups. Assuming that the planet warms by 1.5 °C to 2 °C on average, hospitalizations due to diarrheal disease are expected to increase by 4.5% to 7.4% in all age groups by the end of the century. Children under five may be especially hard hit, with hospitalization rates estiated to increase by 5.7% to 9.4%.

 

Under the Paris Agreement, an international treaty on climate change, countries agreed to set global warming targets to under 2°C. The new study shows that even if these targets are met, hospitalizations from diarrhea will increase substantially in Dhaka. These findings underscore the importance of better preparing the city to prevent and manage diarrheal diseases.

The authors add: “Diarrhoea hospitalisation will increase significantly in Dhaka by 4.5 – 7.4% in all age groups by the 2100s even if the global warming targets adopted by the Paris Agreement is reached. This underscores the importance of preparing the city for management and prevention of diarrhoeal diseases.”

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In your coverage, please use this URL to provide access to the freely available article in PLOS Neglected Tropical Diseases: 

http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0012139

Citation: Haque F, Lampe FC, Hajat S, Stavrianaki K, Hasan SMT, Faruque ASG, et al. (2024) Impacts of climate change on diarrhoeal disease hospitalisations: How does the global warming targets of 1.5–2°C affect Dhaka, Bangladesh? PLoS Negl Trop Dis 18(9): e0012139. https://doi.org/10.1371/journal.pntd.0012139

Author Countries: Bangladesh, Norway, United Kingdom

Funding: This study was completed as a part of a PhD thesis by FH. The authors would like to thank the Commonwealth Scholarship Commission for funding the PhD study. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

END



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[Press-News.org] Climate change likely to increase diarrheal disease hospitalizations by 2100s
Temperature increases of 1.5 °C to 2 °C could increase hospitalizations by 4.5% to 7.4% in Dhaka