Googling for gut symptoms predicts Covid hot spots, study finds
Sunday, 13th September 2020

Internet searches on gastrointestinal symptoms predicted a rise in Covid-19 cases weeks later, researchers at Massachusetts General Hospital found, demonstrating a novel early warning system for hot spots of the pandemic disease.
Researchers at the top-ranked hospital in Boston compared search interest in loss of taste and appetite, and diarrhea with the reported incidence of Covid-19 in 15 US states from Jan. 20 to April 20. Using Alphabet Inc.’s Google Trends online tool, they found the volume of searches correlated most strongly with cases in New York, New Jersey, California, Massachusetts and Illinois states with high disease burden three to four weeks later.
The research, published in the journal Clinical Gastroenterology and Hepatology, showed that the same approach used to monitor pandemic influenza trends more than a decade ago could be deployed for the coronavirus, the hospital said in a report this month. Patients with Covid-19 often report gastrointestinal symptoms, such as abdominal pain and diarrhea, sparking interest in conducting the study.
Kyle Staller, a gastroenterologist and the director of Mass General’s gastrointestinal motility laboratory, and colleagues wrote in the study that “Our data underscore the importance of GI symptoms as a potential harbinger of Covid-19 infection and suggests that Google Trends may be a valuable tool for prediction of pandemics with GI manifestations."
Scientists are also testing for traces of the coronavirus in wastewater to identify places where Covid-19 is spreading.
Monika Walker is an experienced journalist specializing in global political developments and international relations. With a keen eye for accuracy and analysis, Monika has been reporting for over a decade, bringing stories to light that matter to readers around the world. She holds a degree in International Journalism and is passionate about giving a voice to underrepresented communities through factual reporting.
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