FOR CENTURIES the world has struggled with infectious diseases, and experience shows that eradicating them is next to impossible. So far, we have managed to eradicate just one disease: smallpox. Others have entered the ranks of an endemic disease, which persists in the population at a predictable rate after spreading in epidemic or pandemic proportions. Such diseases include malaria, HIV/ Aids, Ebola, measles, and influenza to name a few. Most likely, this is going to be the fate of the novel coronavirus (Covid-19), which will continue to cause intermittent outbreaks after the pandemic ebbs. This is what the World Health Organization (who) predicted. “This virus may become just another endemic virus in our communities, and may never go away,” Mike Ryan, executive director, who emergencies program, said at a press briefing on May 13, 2020.
This transition from pandemic to endemic is not simple. “The end of pandemics is always slow and messy. It will not end at the same time everywhere,” says Nükhet Varlık, associate professor, department of history, University of South Carolina, USA. It is possible that Covid-19 will become endemic in certain parts of the world and continue to circulate to other areas. This is the likely behavior of newly emerging infectious diseases, Varlik told Down To Earth. A key to this transition lies in the fact whether a country has achieved herd immunity against it—through vaccines or by falling sick.
Denne historien er fra February 16, 2021-utgaven av Down To Earth.
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Denne historien er fra February 16, 2021-utgaven av Down To Earth.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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A SPRIG TO CARE FOR
Punarnava, a perennial herb, is easy to grow and has huge health benefits
DIGGING A DISASTER
Soapstone mining near Dabti Vijaypur village has caused many residents to migrate.
REVIEW THE TREATMENT
Several faecal sludge treatment plants in Uttar Pradesh suffer from design flaws that make the treatment process both expensive and inefficient
MAKE STEEL SUSTAINABLE
As India works to double its GDP by 2030, its steel industry must balance growth with sustainability. By embracing policies like the Steel Scrap Recycling Policy 2019 and adopting green technologies, India is paving the way for a more sustainable future in steel production
Can ANRF pull off the impossible for India?
Anusandhan National Research Foundation is expected to reorient India's innovation goals but funding issues, old mindsets remain a drag
TROUBLED WOODS
Forests are a great bulwark against climate change. But this is fast changing. AKSHIT SANGOMLA travels through some of the pristine patches of the Western Ghats to explore how natural disturbances triggered by global warming now threaten the forest health
BLINDING GLOW
The science is clear: increased illumination has damaging consequences for the health of humans, animals and plants. It’s time governments introduced policies to protect the natural darkness and improved the quality of outdoor lighting.
GROUND REALITY
What happens when the soil loses the ability to grow healthy, high-yield crops on its own?
GM POLICY MUST BE FARMER CENTRIC
On July 23, the Supreme Court of India directed the Union government to develop a national policy on genetically modified (GM) crops for research, cultivation, trade and commerce through public consultation.
Vinchurni's Gandhi
A 96-year-old farmer transforms barren land into a thriving forest in drought-prone region of Satara