Cases of gastroenteritis increase with heat and cold

Cases of gastroenteritis increase with heat and cold https://i1.wp.com/www.eresviral.com/wp-content/uploads/2018/10/Los-casos-de-gastroenteritis-aumentan-con-el-calor-y-el-frío.png?fit=260%2C40&ssl=1

Cases of gastroenteritis increase with heat and cold







Heat increases hospitalizations by 21% due to gastroenteritis, while cold increases them by 7%. A new study of the Institute of Global Health of Barcelona (ISGlobal), a center promoted by the Banking Foundation "la Caixa", has analyzed for the first time the relationship between the climate and hospitalizations due to this infection that have taken place in Spain during a period of 17 years.



Diarrheal diseases, preventable and treatable, are the second largest global cause of death of girls and boys under the age of five. In 2015, 1.31 million people died from gastroenteritis worldwide.



So far, few studies have focused on investigating the relationship between climatic factors - temperature and rainfall - with the occurrence of this disease in high-income countries. In most cases, heat and heavy rainfall events had been linked to increased infections.



The objective of the new research, published in Environment International, was to evaluate the association between meteorological variables and total hospitalizations for gastroenteritis in Spain-275,182 were recorded, with a daily average of 44 cases per day- during the period 1997-2013 .



Data from all hospitalizations were obtained from administrative databases and those with gastroenteritis were selected as the main diagnosis. The meteorological data were obtained from the European database European Climate Assessment & Dataset. The study linked the daily counts of hospitalizations with meteorological variables.







Temperature plays an important role in the increase of hospitalizations due to gastroenteritis. (Photo: Creative Commons)



The conclusions indicated that "temperature plays an important role in the increase of hospitalizations due to gastroenteritis," explains Clara Morral Puigmal, first author of the publication. Specifically, on days with a temperature of 12 ° C, the minimum number of hospitalizations due to gastroenteritis was detected. In comparison, on cold days -with an average temperature of 6ºC- 7% more hospitalizations were recorded and on hot days -with an average of 26ºC-, there was a 21% more hospitalizations for this infection.



The high temperatures increased especially hospitalizations for gastroenteritis classified as foodborne. "This relationship is probably due to the fact that the heat favors the growth of bacteria in food," explains Xavier Basagaña, study coordinator and ISGlobal researcher. Hospitalizations due to rotavirus infections were associated with cold temperatures.



In this case, "the relationship may be explained because when it's cold you spend more time inside buildings and with less ventilation, which can increase the transmission from person to person," he argues.



The study has also found that on days when there are rains the risk of gastroenteritis is reduced by 26%. Basagaña comments that "this association was unexpected and could be explained by a lower use of recreational waters during the rain episodes".



The results were similar in both sexes, with women being more susceptible to heat than men. Children under one year were the most susceptible to cold.



Xavier Basagaña concludes that these results "are relevant due to the context of climate change that we are experiencing, in which temperatures and climatic events are increasingly extreme". (Source: ISGlobalorg)

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