The realities of SARS-COV II - - -

It was on March 11, 2020 that the World Health Organization (WHO) declared the coronavirus pandemic. During this same period, Italy was the main focus and then the USA took the place of Italy until today. Despite the appearance of vaccines, SARS-Cov II seems to foil the prognosis thanks to its new variants.

Four countries have detected their variants namely the United States of America (Cal.20C), the United Kingdom (B.1.1.7), South Africa (B.1.351), Brazil (P.1).

The aim of this article is to show you, how each Covid19 wave is caused by the appearance of the new variants. And also how is Covid19 spread in the USA.

Observations of covid19 before the appearance of variants?

At the start of the pandemic (1st wave), this is how we could see covid19.

1. Covid-19 likes moving along latitude and cool climat country or continent but more-less in heat continent like Africa.
2. Covid-19 likes moving along rich countries, mega-cities which have huge population and high healthcare (There exist another reason for that).
3. Mortality is very high in Europe, North America and South America continent.

Since Covid-19 has ARN, I think that if the northern countries are more affected by this virus it is because the climate or the environment of these countries allows the rapid development of the virus or else the obstacles encountered by this virus are not sufficient enough to prevent the virus from mutating. On the other hand, in the hot regions here the African continent, we note indeed that there are not enough cases (except South Africa); perhaps due to the diverse climate of Africa or the countries of this continent.Due to the diversity of the African climate or environment, the virus probably has trouble mutating quickly because at each mutation (resolution of the problem in the face of an obstacle by the virus: the virus adapts) the virus is always mutated because the African environment brings the complexity(except South Africa).Even if the SARS Cov 2 cannot move quickly in the African environment(except South Africa). We should be vigilant.

Kaggle UNCOVER COVID-19 Challenge. : Africa Covid -19 Forecasting

Observations of new covid19 variants: 2nd and 3rd wave.

We will only focus on three Cal.20 C, B.1.1.7, B.1.135 variants.

Cal.20 C variant.

CAL.20 C had been detected in southern California (USA) amid a surge in local infections and is spreading through and beyond the United States. Here is its manifestation through graphs.

The most surprising side: Prevalence.

B.1.1.7 variant

The variant B.1.1.7 is an English variant detected in September 2020; here are its manifestations.

B.1.135 variant.

The B.1.135 variant is a South African variant detected in October 2020; here are also his manifestations.

Conclusion

Based on the information we have obtained and seen throughout this article, we can summarize this:

1. SARS-Cov II spreads best in areas with a high population density (example California, Los Angeles), the coronavirus II spreads differently in the world.
2. Each wave originates from a new variant of Covid-19. The latter is detected if and only if its propagation is long; other not because short or brief.
3. Each variant has its own specificity depending on the place of its existence (the South African variant is different from that of the English and the Americans).
4. In the USA, the contamination of the provinces of states by Covid-19 is done according to the size of the population i.e. the most populous states are the most contaminated. (example California, New York, Florida, Texas, Pennsylvania, ..).

Reference:

• CDC (Center for Disease Control and prevention).
• CIDRAP (Center for Infectious Disease Research and Policy).
• Covid19 wave & variant Tracker (Kaggler community).

Thanks for reading and comment.