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Ultraviolet Light Strongly Associated With Low Growth Of COVID-19, Says Study

A study published in the Proceedings of the National Academy of Sciences said researchers based on the finding, predicted that maximum COVID-19 growth would decline in the summer but rebound during autumn and peak in the winter

Ultraviolet Light Strongly Associated With Low Growth Of COVID-19, Says Study
Highlights
  • Ultraviolet light correlated with reduced COVID-19 growth: Study
  • COVID-19 declines with high temperature, humidity, ultraviolet light: Study
  • The study published is in Proceedings of the National Academy of Sciences

Connecticut: High levels of ultraviolent light is “most strongly” associated with reduced Covid-19 growth, says a new study where scientists looked at statistical models of the link between weather and the maximum growth rate of the virus globally. A study published in the Proceedings of the National Academy of Sciences on Tuesday said researchers based on the finding, predicted that maximum COVID-19 growth would decline in the summer but rebound during autumn and peak in the winter, albeit with a high degree of uncertainty, indicating that continued social intervention may be necessary.

Statistical models of the link between weather and the maximum growth rate of COVID-19 worldwide suggest that high levels of ultraviolet light correlated with reduced COVID-19 growth; based on this finding, researchers predicted that maximum COVID-19 growth would decline in the summer but rebound during autumn and peak in the winter, albeit with a high degree of uncertainty, indicating that continued social intervention may be necessary, according to the authors.

The research article from Cory Merow and Mark C. Urban states that “It remains unknown, as of April 2020, whether summer will reduce its spread, thereby alleviating strains on hospitals and providing time for vaccine development.”

Also Read: “Respiratory Viruses Known To Thrive During Winters,” Warns Health Minister In His Weekly Address, Here Are Other Takeaways

It pointed out that early insights from laboratory studies and research on related viruses predicted that COVID-19 would decline with higher temperatures, humidity, and ultraviolet (UV) light.

Using current, fine-scaled weather data and global reports of infections, we develop a model that explains 36 per cent of the variation in maximum COVID-19 growth rates based on weather and demography (17 per cent) and country-specific effects (19 per cent), it added. The ultraviolet light is most strongly associated with lower COVID-19 growth. Projections suggest that, without intervention, COVID-19 will decrease temporarily during summer, rebound by autumn, and peak next winter, the article read.

The study further pointed out that validation based on data from May and June 2020 confirms the generality of the climate signal detected.

However, uncertainty remains high, and the probability of weekly doubling rates remains >20 per cent throughout summer in the absence of social interventions. Consequently, aggressive interventions will likely be needed despite seasonal trends, the study said further.

Also Read: Ramping Up Cold Storage Facilities Critical As India Preps For COVID-19 Vaccine: Experts

As per the latest updates by Johns Hopkins University, there are 38,032,320 COVID-19 cases globally and 1,084,336 deaths due to the pathogen. The US continues to be the worst-affected country in the world with 7,852,008 cases and 215,803 deaths. India and Brazil are the other two most-affected countries after the US from the pathogen.

(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.) 

NDTV – Dettol Banega Swasth India campaign is an extension of the five-year-old Banega Swachh India initiative helmed by Campaign Ambassador Amitabh Bachchan. It aims to spread awareness about critical health issues facing the country. In wake of the current COVID-19 pandemic, the need for WASH (WaterSanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign highlights the importance of nutrition and healthcare for women and children to prevent maternal and child mortality, fight malnutrition, stunting, wasting, anaemia and disease prevention through vaccines. Importance of programmes like Public Distribution System (PDS), Mid-day Meal Scheme, POSHAN Abhiyan and the role of Aganwadis and ASHA workers are also covered. Only a Swachh or clean India where toilets are used and open defecation free (ODF) status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and become a Swasth or healthy India. The campaign will continue to cover issues like air pollutionwaste managementplastic banmanual scavenging and sanitation workers and menstrual hygiene.  

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