Abstract
Background – The SARS-CoV-2/ Covid -19pandemic is still going on and globally healthcare system is overstressed with this new burden added with previous NCD & CD in existence. The First human case of this global pandemic was reported from Wuhan city of China in December 2019.11https://apps.who.int/iris/bitstream/handle/10665/332197/WHO-2019-nCoV-FAQ-Virus_origin-2020.1-eng.pdfObjective – The main objective of this study is to illustrate the key features of Covid -19 virus responsible for continuation and recurrence of this pandemic as well as current latest status in brief. Setting and design – Different aspects of Covid -19 structural variations and its effect will be analysed. Brief details about epidemiological triad will be outlined.Methodology – The explanation will be given to title through analysis of several accredited findings. The cause of perpetuation of Covid -19 can be understood by the way of infections and other related factors. Result- Several factors are responsible for the continuation of the pandemic.
Conclusion – In the epidemiological triad we have agent/host/environment…..
Background - The SARS-CoV-2/ Covid -19 pandemic is still going on and globally healthcare system is overstressed with this new burden added with previous NCD & CD in existence. The First human case of this global pandemic was reported from Wuhan city of China in December 2019. The SARS-CoV-2/ Covid -19 coronavirus belongs to a large family of coronavirus. Usually they cause respiratory infection in humans like other respiratory viruses such as rhinoviruses/ human respiratory syncytial virus/ parainfluenza viruses/ adenoviruses/influenza A & B viruses / enteroviruses / herpes simplex viruses/ human metapneumoviruses etc.
Globally new covid-19 cases are rising again or we can say alternatively that incidence rate is increasing. In the last week of March 2021 the new cases reported globally are more than 3.8 million. At the same time the number of deaths also increased consecutively for the second consecutive week. The deaths increased by 5 % compared to previous week. The total number of death for above mentioned period was over 64000 new deaths. The more alarming fact is that all regions have reported an increase in incidence rate in last week of March 2021. If we talk about deaths then except African region all regions reported an increase in the number of deaths due to covid-19. Added to above facts still the European region with region of Americas are on the top accounting for 80 % of all cumulative cases and deaths.22https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---31-march-2021 There is sharp rise in south East Asia region or actually it’s the largest increase on global basis that is 21 % increase in deaths with continued increasing trends in the 3rd consecutive week. The south East Asian region is also having a huge population as well as many nations are in developing stage with stressed and overburdened health system.
Objective - The main objective of this study is to illustrate the key features of Covid -19 virus responsible for continuation and recurrence of this pandemic as well as current latest status in brief. The latest scenario of covid-19 pandemic is as follow: see table 1
Table 1 - Newly reported and cumulative COVID-19 confirmed cases and deaths, by WHO Region, as of 28 March 2021- source - WHO