4:13 PM 2/1/2021 - The Mystery Of India's Plummeting COVID-19 Cases
- Other Apps
4:13 PM 2/1/2021
M.N.: My hypothesis and explanation:
1. Sars-Cov-2 was present in India, just like everywhere else, for quite some time, probably for decades if not longer. It was and is largely asymptomatic, and the populace developed the adequate immunity to it:
Serological surveys – random testing for antibodies – show a majority of people in certain areas of India may have already been exposed to the coronavirus, without developing symptoms. Last week, preliminary findings from a fifth serological study of 28,000 people in India's capital showed that 56% of residents already have antibodies, though a final report has not yet been published. The numbers were higher in more crowded areas. Last summer, another survey by Mumbai's health department and a government think tank found that 57% of Mumbai slum-dwellers, and 16% of people in other areas, had antibodies suggesting prior exposure to the coronavirus.
2. Bacteria and viruses compete with each other.
"All of us have pretty good immunity! Look at the average Indian: He or she has probably had malaria at some point in his life, or typhoid or dengue," says Sayli Udas-Mankikar, an urban policy expert at the Observer Research Foundation in Mumbai. "You end up with basic immunity toward grave diseases."
"COVID-19 deaths are lower in countries where people are exposed to a diverse range of microbes and bacteria."
Original Research18 November 2020 | Effectiveness of Adding a Mask Recommendation to Other Public Health Measures to Prevent SARS-CoV-2 Infection in Danish Mask Wearers | A Randomized Controlled Trial
The Mystery Of India's Plummeting COVID-19 Cases
February 1, 20213:29 PM ET