The explanation in a study evaluating the impact of temperature on the spread of coronavirus by Imperial College London showed that although milder environmental conditions can reduce the spread of pathogens, these are not sufficient to prevent infection.
Warm temperatures will reduce the spread of coronavirus, but not enough to prevent infection.This was published in PNAS A research team from Imperial College London emphasized the importance of wearing masks and respecting interpersonal distance and other measures to fight the pandemic, even as we are approaching summer in the northern hemisphere. “Health policy decisions are still essential to control the spread of the virus, and compliance with the recommendations will continue to be implemented The key role in fighting the spread of pathogens“ This is emphasized by Ilaria Dorigatti, co-author of the study and researcher at the MRC Global Infectious Disease Analysis Center at Imperial College London.
Dorigatti and colleagues show that in addition to temperature, population density also plays an important role in the spread of the virus. “Our results show that compared with public health interventions, temperature changes have a much smaller impact on transmission. Therefore, during the vaccination campaign, part of the population was not vaccinated, and the government They cannot abandon the restrictions and policies to fight the pandemic Just because we are experiencing seasonal changes“.
Although the thermal effect is significant, It is limitedThe epidemiological model developed by the researchers, including environmental data and recorded Covid-19 cases in the United States, shows that for every 1 degree Celsius increase in temperature, the R infection index decreases by about 0.04 percentage points. “This means that a difference of 20 °C, such as the difference recorded between winter and summer temperatures, may be equivalent to The difference in R is about 0.8“. However, scholars have pointed out that any impact of climatic conditions can be offset by factors that affect the spread of Sars-Cov-2, such as the cancellation of infection control measures.”For example, during lockout, No important evidence Transmission is affected by temperature” Scholars pointed out.
“This means, for example, warmer regions They should not consider relaxing restrictions Mobility before cold regions -Will Pearse from the Department of Life Sciences at Imperial College London and the lead author of the study said. This is especially true because warmer areas tend to have higher population densities-for example, Florida has a higher population density than Minnesota“.