"The world today looks very different from the world of the 19th and early 20th centuries. And yet, there are parts of the developing world where city-dwellers continue to remain badly served in terms of basic sanitation, drinking water, and decent housing. The current COVID-19 pandemic, and any other epidemics that occur in the future, are likely to wreak havoc in these cramped areas packed with informal housing. As more and more cases are being discovered in these areas, the challenges of isolating individuals and ensuring that standards of hygiene are being met loom large."
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