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DAILY NEWS ANALYSIS
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19 May, 2020
8 Min Read
How far can weather impact Covid reproduction number?
A new study by Harvard University has estimated the impact of weather on transmission of Covid-19 infections and found a negative relationship between temperatures above 25°C and estimated reproduction number, with each degree Celsius associated with a 3.1% reduction in the reproduction number.
The study found that higher levels of relative humidity strengthen the negative effect of temperature above 25°C.
But the findings suggest that weather alone will not be enough to fully contain transmission, even though it may help with efforts to contain the pandemic and build response capacity.
The study, entitled ‘Weather Conditions and COVID-19 Transmission: Estimates and Projections’.
Reproduction Number
It found that would need a reduction of reproduction number by more than 70% to contain the risk of transmission, while that reduction factor rarely goes below 50% globally.
In the case of Delhi, the reduction in reproduction number due to weather is projected to vary between 47% and 16% till August; for Mumbai, between 43% and 23%; for Ahmedabad, between 43% and 26%; for Indore, between 36% and 8%.
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Reproduction number is the average number of individuals infected by each infectious person. At the start of an epidemic when everyone in a population is considered susceptible, epidemiologists estimate the ‘basic reproduction number’, or R0.
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CRW
Source: IE
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The Ministry of Education plans to introduce Artificial Intelligence (AI) and Computational Thinking (CT) from Class 3 onwards in the 2026–27 academic year. This initiative is part of the National Curriculum Framework for School Education (NCF-SE) 2023 and aligns with the National Education Policy (NEP) 2020. The aim is to prepare student
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Scientists from the Environment Department of Himachal Pradesh University (HPU) in Shimla have recently revealed that the Sal tree (Shorea robusta) is the most effective natural air purifier for combating rising pollution levels. Their findings highlight the tree’s superior capacity to trap dust, absorb gases, and cleanse the air compared
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The President of the United States has ordered the resumption of nuclear weapon testing after a gap of 33 years, the last test being in 1992. This decision marks a significant shift in global nuclear policy and has far-reaching implications for geopolitics, the environment, and international security. Status of Global Nuclear Weapon Testing
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