REVIEW OF WORLDWIDE PANDEMIC SITUATION OF COVID-19 ACTIVITIES FROM BEGINNING 2019 TO CURRENT SCENARIO – 2022
Dilendra Chandraker
ABSTRACT
We all know from the last three years, how the whole world fought with an epidemic situation like Covid-19 and many countries are still affected. Whole had to face lock down, this had to face the problem of economic, financial, hunger and jobs etc. due to this infection. COVID-19 is spreading all over the world, and you can say that it is a worldwide infectious disease. In humans, corona viruses to cause respiratory infections range from the general cold to further severe disease such as the Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). The most newly discovered coronavirus causes coronavirus disease COVID-19. New virus and disease were unidentified prior to the eruption in Wuhan, China, in December 2019. They are transmitting from one host to another host, depending on the corona virus species, by either an aerosol and fecal-oral route. Now various peoples are dying day by day, the whole world from this virus. During the pandemic situation, some scientists have discovered vaccines successfully and tried it on some peoples by China then Russia Countries. India has also discovered effective vaccines such as, Covaccine and Covishield and these vaccine doses are in three steps first, second and booster. It is used for all people from the ages of 18 to old ages. These vaccines are working effectively according to these countries with successful results. After that, all types of vaccines are approved and continuously used in the whole world and it is controlled by the infections from corona virus and life is controlled from it. At present scientists working for other vaccines which will be use for children under the age of 18 year old. The main precaution of this virus is two meter distance and wears mask and sterile hands which are continuously talked about by WHO and governments by all countries. So the present review study we have discussed about infection of corona virus and its pandemic activity worldwide, same as we have discussed its structure and replication process, transmission precaution and vaccination on this study.
Keywords: Covid-19, Replication, Pandemic infection, Vaccination.
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