Toronto : Temperature and latitude are not associated with the spread of COVID-19 disease, according to a global study that found school closures and other public health measures are having a positive effect on containing the novel coronavirus. The study, published in the Canadian Medical Association Journal, looked at 144 geopolitical areas — states and provinces in Australia, the US, and Canada as well as various countries around the world — and a total of over 3,75,600 confirmed COVID-19 cases. The researchers said China, Italy, Iran and South Korea were excluded because the virus was either waning in the case of China or in full disease outbreak at the time of the analysis in others.
“Our study provides important new evidence, using global data from the COVID-19 epidemic, that these public health interventions have reduced epidemic growth,” said Peter Juni from the University of Toronto, and St. Michael’s Hospital in Canada. To estimate epidemic growth, the researchers compared the number of cases on March 27 with those on March 20. They determined the influence of latitude, temperature, humidity, school closures, restrictions of mass gatherings and social distancing measured during the exposure period of March 7 to 13. The study found little or no association between latitude or temperature with epidemic growth of COVID-19, and a weak association between humidity and reduced transmission. (Source : Indian Express)