Pandemic, coronavirus, quarantine - probably today there is no person in the world who is not familiar with these words. Ordinary people, doctors, politicians, scientists, journalists, and others know them - there is a lot of attention to this, but there is still no solution.
I also follow this from the very beginning and noticed some features of the spread of coronavirus in the world, and we will talk about them.
Why math? Mathematics is a fundamental science, reveals interconnections and contributes to finding the most general laws of nature. There will be no integrals, matrices and formulas, there will be graphs with numbers, pictures and words - with the help of them I will try to tell about some of the relationships in this "equation" and try to find its solution.
The first variable in this "equation" is vitamin D .
Scientists from many countries claim that vitamin D deficiency leads to more severe consequences in coronavirus. Vitamin D cannot completely cure, but it has anti-inflammatory properties that will help the body resist complications.
Vitamin D is partly supplied to the body through food, but the main source is cholecalciferol (vitamin D3), which is produced in the skin when exposed to direct sunlight, which makes regular sun exposure vital for humans. In the absence of sufficient insolation and / or fortified food, the body uses up the reserves of vitamin D accumulated under more favorable conditions in adipose tissue.
So we moved on to the second variable - sunlight .
More details here.
Let's start with geography. As you know, the conditional section line, which is called the equator, divides the Earth into two halves - the Northern Hemisphere and the Southern Hemisphere (Fig. 1).
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For a better result, the solution should be comprehensive, in addition to self-isolation and lockdowns, and these are more passive measures, and active measures should also be taken - reducing the proportion of citizens with vitamin D deficiency among the population in the autumn-winter period, in order to reduce the infectiousness of the virus.
This requires:
1 - make available (in terms of finance and time) the analysis of vitamin D in the body for all population groups.
2 - make sure that medicines (dietary supplements too) and products containing it are also available in pharmacies and stores.
3 - support from the state and the media for this action.