As severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) evolves, it accumulates mutations, which are changes in the genetic code. Because this virus has built‐in RNA repair mechanisms, it generates mutations more slowly than some other RNA viruses. Thousands of mutations have emerged since the beginning of the pandemic throughout all virus genomes sequenced to date, resulting in thousands of distinct variants. However, some variants have recently been discovered that appear to increase transmissibility and may affect illness pervasiveness. In this study, we investigated SARS‐CoV‐2 variants and how countries intervene with them. We also depicted the top 25 countries where the Omicron variant is prevalent, with the UK, US, Denmark, France, and Australia having the top five places as of January 13, 2022. The perception of SARS‐CoV‐2 variants was investigated in those five countries, and the propagation rate of the Omicron variant was determined to be 51%, 29%, 26%, 15%, and 44%, respectively, indicating that the Omicron variant is the most prevalent among the others. Then, a study of SARS‐CoV‐2 infection test rate based on tests conducted per one million populations with a number of sequences in those five countries reveals that 25%, 73%, 1.6%, 4.8%, and 1.5%, respectively, it suggests that viral testing should be increased in all five countries since it will help to determine the precise distribution of variants and aid governments in making policy decisions for public safety. We anticipated the production of new variants strains. This study implies that limiting disease transmissions, such as acquiring a coronavirus disease 2019 vaccine and booster doses for those aged 18 and older, as well as wearing the mask in public places, is the best strategy to prevent the emergence of new variants.

A local outbreak of initially unknown cause pneumonia was detected in Wuhan (Hubei, China) in December 2019 and a novel coronavirus, the severe acute respiratory syndrome coronavirus 2, was quickly found to be causing it. Since then, the epidemic has spread to all of China's mainland provinces as well as 58 other countries and territories, with more than 87,137 confirmed cases around the globe, including 79,968 from China, 7169 from other countries as of 1 March 2020, as stated by the World Health Organization in the COVID-19 situation report-41. In response to this current public health emergency, this study done a statistical analysis and visualized reported cases of coronavirus disease 2019 based on the open data collection provided by Johns Hopkins University. Where the location and number of confirmed infected cases have been shown, there have also been deaths, recovered cases and comparisons of the growth rates between the Globe countries. This was intended to provide researchers, public health officials and the general public with exposure to the epidemic.Keywords COVID-19 Á Statistical analysis Á Visual data analysis Á Coronavirus Diseases and bacteria or viruses which cause them often have different names. The ''human immunodeficiency virus,'' HIV, for example, induces the ''acquired immunodeficiency disease,'' AIDS. The virus that triggers the current outbreak is called coronavirus 2, a serious acute respiratory syndrome shortened to SARS-CoV-2. The illness, shortened to COVID-19, is called coronavirus disease. The World Health Organization, and the International Committee on Taxonomy of Viruses (ICTV) [1], gave these names. In public speaking, the WHO also refers to the virus as ''the virus accountable for COVID-19,'' or ''the COVID-19 virus.'' The outbreak was first reported in Wuhan city, China. Wuhan is the capital of the Hubei Province and has a population of around 11 million. Chinese authorities reported a cluster of related pneumonia cases in the town on 29 December 2019. A novel coronavirus which was later called SARS-CoV-2 soon confirmed to cause these cases [2][3][4][5][6][7]. The first COVID-19 cases outside of China were found in Thailand on January 13 and in Japan on January 16 [8]. The Chinese Government put the city of Wuhan and other cities in the area on lockdown on January 23. COVID-19 has since spread to several more countries-cases have been recorded in all regions of the world. It grew into a global pandemic by March 2020, and was announced by the WHO as such [9][10][11]. While people sometimes refer to the virus that causes COVID-19 as ''the coronavirus,'' several different coronaviruses do exist. The word refers to a group of viruses specific to humans: coronaviruses cause about 30 percent of all cold cases [12]. Corona is Latin for ''crown''-this group of viruses is named because, under an electron microscope, its surface looks like a crown. As the outbreak of the novel SARS-CoV-2 is increasingly spreading in China and beyond, threatening to become a global pandemic, epidemiol...

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MHD viscous nanofluid flow with viscous dissipation and thermal radiation in the presence of a temperature gradient dependent heat sink is analyzed. Hence, this work mainly deals nano fluids with nanoparticles Cu, Ag, Al, Al2O3 and TiO2 and with base fluids’ water and kerosene. Prescribed heat flux boundary condition is employed on the porous surface. Suitable similarity transformations are introduced for converting nonlinear partial differential equations into the nonlinear ordinary differential equations and then solved by analytically. The influence of various physical parameters over the velocity and temperature of nanofluids Cu-water and Cu-kerosene are examined by using graphs. Skin friction coefficient and Nusselt number of various nanofluids tabulated and analyzed. It is found that skin friction coefficient and heat transfer rate of kerosene based nanofluid is higher than the water based nanofluid in the presence of considered physical effects.