![]() A better understanding of the seasonal changes and infections may help in designing predictive models for COVID-19. A seasonal element is associated with the spread of respiratory infections. ![]() Respiratory infections, including CoVs, are more frequent from November to March in the northern hemisphere and April to August in the southern hemisphere. In the current coronavirus disease 2019 (COVID-19) pandemic, the main strategies to limit SARS-CoV-2 infection and spread included closing air travel and travel across borders, case and contact tracing, isolation or quarantine measures, implementation of social distancing, increased use of facial masks and other protective equipment, practicing diligent disinfection procedures, and implementation of strict lockdown measures. Interestingly, the days that both of these infections started coincided with major national public holidays. SARS in 2002/2003 and SARS-CoV-2 in 2019/2020 infections started in cold dry winter seasons. Seven known coronaviruses infect humans and belong to Alphacoronaviruses and Betacoronaviruses, all of which are derived from animal sources. Image Credit: Dragana Gordic / CoronavirusesĬoronaviruses (CoVs) cause respiratory and gastrointestinal infections in a variety of animals including birds, reptiles, amphibians, and mammals. Study: Coronavirus seasonality, respiratory infections and weather. This study also provides information on the associations between weather parameters and seasonal coronavirus cases, which will contribute to the current understanding of the transmission of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is observed that coronavirus infections are more common in winter.Ī new study published in the journal BioMed Central Infectious Diseasesexamines the seasonality of respiratory infections in England and Wales. The survival of coronaviruses in the community is dictated by weather conditions. Shital Sarah Ahaley Ph.D Reviewed by Benedette Cuffari, M.Sc. This isn’t the case for the new coronavirus – fewer cases have been reported in young people, though this may be just because they are less likely to become seriously ill.By Dr. However, children tend to spread flu because they have less immunity to flu strains than adults, who have been exposed to many strains. In particular, it could be linked to school closures, says John Edmunds, also at the London School of Hygiene and Tropical Medicine. It is thought one reason why flu spreads less readily in summer is that people spend less time together in confined spaces. “These viruses can certainly spread during high temperature seasons,” he says. However, if it is less infectious in warmer conditions, there is a greater chance of it spreading in the southern hemisphere as conditions there cool.ĭavid Heymann at the London School of Hygiene and Tropical Medicine, who led the global response to the SARS outbreak in 2003, points out that the MERS coronavirus has spread in Saudi Arabia in August, when it is very hot. “The other extreme scenario is that it will reduce in the summer but it will come back again in the winter and become what we call endemic, in that it will spread pretty much everywhere.” “One extreme scenario is that it will burn itself out sometime in the summer,” says Hunter. Read more: Could the new coronavirus really kill 50 million people worldwide?
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