{"id":778,"date":"2020-05-09T10:48:53","date_gmt":"2020-05-09T05:18:53","guid":{"rendered":"http:\/\/www.potentialloops.org\/?p=778"},"modified":"2020-05-09T10:48:55","modified_gmt":"2020-05-09T05:18:55","slug":"canadian-study-finds-temperature-latitude-not-associated-with-covid-19-spread","status":"publish","type":"post","link":"https:\/\/www.potentialloops.org\/?p=778","title":{"rendered":"Canadian study finds temperature, latitude not associated with COVID-19 spread"},"content":{"rendered":"\n

School closures, physical distancing and public health measures have effect <\/h4>\n\n\n\n

Date: May 8, 2020 <\/p>\n\n\n\n

Source 1: Canadian Medical Association Journal<\/p>\n\n\n\n

Source 2: www.sciencedaily.com<\/a><\/p>\n\n\n\n

Summary: A new study finds that temperature and latitude do not appear to be associated with the spread of coronavirus disease 2019 (COVID-19), but school closures and other public health measures are having a positive effect. <\/p>\n\n\n\n

Temperature and latitude do not appear to be \nassociated with the spread of coronavirus disease 2019 (COVID-19), \naccording to a study of many countries published in CMAJ<\/em> (Canadian Medical Association Journal<\/em>), but school closures and other public health measures are having a positive effect.<\/p>\n\n\n\n

“Our study provides important new evidence, using global data from \nthe COVID-19 epidemic, that these public health interventions have \nreduced epidemic growth,” says Dr. Peter J\u00fcni, Institute for Health \nPolicy, Management and Evaluation, University of Toronto, and St. \nMichael’s Hospital, Toronto, Ontario.<\/p>\n\n\n\n

The Canadian study looked at 144 geopolitical areas — states and \nprovinces in Australia, the United States and Canada as well as various \ncountries around the world — and a total of more than 375 600 confirmed\n COVID-19 cases. China, Italy, Iran and South Korea were excluded \nbecause the virus was either waning in the case of China or in full \ndisease outbreak at the time of the analysis in others. To estimate \nepidemic growth, researchers compared the number of cases on March 27 \nwith cases on March 20, 2020, and determined the influence of latitude, \ntemperature, humidity, school closures, restrictions of mass gatherings \nand social distancing measured during the exposure period of March 7 to \n13.<\/p>\n\n\n\n

They found little or no association between latitude or temperature \nwith epidemic growth of COVID-19 and a weak association between humidity\n and reduced transmission. The results — that hotter weather had no \neffect on the pandemic’s progression — surprised the authors.<\/p>\n\n\n\n

“We had conducted a preliminary study that suggested both latitude \nand temperature could play a role,” says Dr. J\u00fcni. “But when we repeated\n the study under much more rigorous conditions, we got the opposite \nresult.”<\/p>\n\n\n\n

The researchers did find that public health measures, including \nschool closures, social distancing and restrictions of large gatherings,\n have been effective.<\/p>\n\n\n\n

“Our results are of immediate relevance as many countries, and some \nCanadian provinces and territories, are considering easing or removing \nsome of these public health interventions,” says Dr. J\u00fcni.<\/p>\n\n\n\n

“Summer is not going to make this go away,” says Prof. Dionne Gesink,\n a coauthor and epidemiologist at Dalla Lana School of Public Health. \n“It’s important people know that. On the other hand, the more public \nhealth interventions an area had in place, the bigger the impact on \nslowing the epidemic growth. These public health interventions are \nreally important because they’re the only thing working right now to \nslow the epidemic.”<\/p>\n\n\n\n

The authors note several study limitations, such as differences in \ntesting practices, the inability to estimate actual rates of COVID-19 \nand compliance with social distancing.<\/p>\n\n\n\n

When deciding how to lift restrictions, governments and public health\n authorities should carefully weigh the impact of these measures against\n potential economic and mental health harms and benefits.<\/p>\n\n\n\n

\n\n\n\n

Story Source:<\/strong><\/p>\n\n\n\n

Materials provided by Canadian Medical Association Journal<\/strong><\/a>. Note: Content may be edited for style and length.<\/em><\/p>\n\n\n\n

www.sciencedaily.com<\/a><\/p>\n\n\n\n

\n\n\n\n

Journal Reference<\/strong>:<\/p>\n\n\n\n

  1. Peter J\u00fcni, Martina Rothenb\u00fchler, Pavlos Bobos, Kevin E. Thorpe, \nBruno R. da Costa, David N. Fisman, Arthur S. Slutsky, Dionne Gesink. Impact of climate and public health interventions on the COVID-19 pandemic: A prospective cohort study<\/strong>. CMAJ<\/em>, May 8, 2020; DOI: 10.1503\/cmaj.200920<\/a>\n<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"

    School closures, physical distancing and public health measures have effect Date: May 8, 2020 Source 1: Canadian Medical Association Journal Source 2: www.sciencedaily.com Summary: A new study finds that temperature and latitude do not appear to be associated with the spread of coronavirus disease 2019 (COVID-19), but school closures and other public health measures are 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