Covid-19 and the problems of mass epidemics on Earth.

This question cannot leave anyone apathetic; many are losing their loved ones, friends, and relatives, in connection with the outbreak of a pandemic. My family was also not spared; we lost our grandmother in May 2020. Therefore, this topic is close to me and I want to understand the causes and consequences of this problem.

I put forward a hypothesis:

What influenced the emergence of the Covid-19 and what the world will be like after defeating it?

Following an assessment of the Covid-19 outbreak, the World Health Organization (WHO) has declared Covid-19 as a pandemic. A pandemic is a severe epidemic that has taken on a massive, widespread character, affecting a significant part of the population. The epidemic is characterized by the spread of an infectious disease throughout the country, in the territories of neighboring states, and sometimes in many countries of the world. Thus, the outbreak of coronavirus infection has become the 18th pandemic in human history. Up to this point, there were three outbreaks of plague, 7 outbreaks of cholera, 2 outbreaks of influenza, 2 outbreaks of typhoid, HIV. And I have questions:

1) What does the current pandemic have in common with the most deadly diseases of the past – plague, cholera and ā€œSpanish fluā€?

2) How has urban growth and mass migration influenced the spread of dangerous diseases?

3) Coronavirus is changing the planet’s climate – is it true or myth?

4) Could the Covid-19 be the engine of progress in the economy?

Approximately two million new cases of COVID-19 are reported every week and have passed the sad milestone of one million deaths this week. All countries mourn the loss of so many people. In general, there are four different situations that countries currently face. First, some countries quickly repelled the virus attack and avoided major outbreaks. Secondly, a number of countries have experienced large outbreaks, but have managed to contain them and continue to contain the virus. Third, some countries initially stopped the spread of the virus, but now, as restrictions on economic and social life eased, they are seeing an increase in the incidence. And fourthly, some countries are still in an intense phase of transmission. The fight against the outbreak has entered a critical phase. We face a common misfortune and will work together to strengthen science, seek solutions and show solidarity until our common victory over the virus. Every person around the world hopes that such a day will come, they will invent a vaccine against coronavirus, and peoples will begin to live in more comfortable conditions.