Warm temperatures and tropical climates may really help reduce the spread of COVID-9, new studies suggest.
The study found that COVID-19 incidence was lower in hot, long-sunlight countries, such as countries near the equator and in countries experiencing summer, compared to countries far from the equator and cold countries. I did.
Investigate even after researchers have considered the prevalence of COVID-19 and other factors that may affect both the reported number of cases, such as the level of urbanization in the country and the intensity of COVID-19 testing. The results were retained.
Still, the authors emphasize that their findings do not mean that summer weather eliminates COVID-19. But it may empower people to combat illness.
“Our results do not mean that the disease will not disappear in the summer or affect countries near the equator,” the authors wrote in a treatise published in the journal on April 27. I will. Science report.. “Rather, higher temperatures and stronger UV rays [ultraviolet] Summer radiation is likely to support public health measures, including SARS-CoV-2, “said the new coronavirus that causes COVID-19.
Immediately after the COVID-19 pandemic began in the winter of 2020, there was speculation that summer temperatures might provide relief from COVID-19.Indeed, many respiratory viruses, including Influenza virus, Display seasonal patterns, Peak during winter And soak during the summer.
Scientists aren’t sure why these viruses follow seasonal patterns, but several factors are believed to play a role. For example, studies have shown that many respiratory viruses are more stable and stay in the air longer in cold, low-humidity environments. Live science previously reported.. Human behavior, such as gathering indoors in winter, can also promote infection.
Laboratory tableware studies have also shown that high temperature and humidity reduce the survival rate of SARS-CoV-2, but it was unclear whether this would lead to actual infection.
A new study analyzed information from 117 countries using data on the COVID-19 epidemic from the beginning of the pandemic to January 9, 2021. We used statistical methods to investigate the relationship with the latitude of the country. The amount of sunlight received, temperature and humidity, and the level of COVID-19 will increase. We also use World Health Organization data to manage factors that could impact the country’s impact on COVID-19, such as air travel, health care costs, the ratio of older people to young people, and economic development. did.
They found that every 1 degree increase in national latitude from the equator was associated with a 4.3% increase in the number of COVID-19 cases per million. That is, if one country is 620 miles (1,000 km) closer to the equator than another, then countries near the equator are expected to have 33% fewer COVID-19 cases per million, and all other factors. Country.
“Our result is heat and sunlight.
According to the author, the prevalence of SARS-CoV-2 and COVID-19 is from the Heidelberg Institute for Global Health in Germany and the Chinese Academy of Medical Sciences in Beijing, and the findings are “a threat to the resurgence of the epidemic.” They said, as was seen in many countries in the northern hemisphere in December 2020 and January 2021.
The authors included only data up to January 9, 2021 before many COVID-19 variants became prevalent worldwide, including variants that first appeared in South Africa and the United Kingdom. Therefore, these variants show a similar pattern of seasonal infections.
Originally published in Live Science.
Studies suggest that the new coronavirus is truly seasonal
Source link Studies suggest that the new coronavirus is truly seasonal