Epidemiology of COVID-19: What have we learnt until now?

The first case in the outbreak of atypical pneumonia of unknown etiology, later confirmed as disease caused by SARS-CoV-2, was described in Wuhan (China) on December 8, 2019. The rapid expansion of COVID-19 cases prompted the World Health Organization (WHO) to declare a global health emergency, and...

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Autor principal:	Pekmezović Tatjana
Formato:	article
Lenguaje:	EN SR
Publicado:	University of Belgrade, Medical Faculty 2021
Materias:	covid-19 epidemiology herd immunity prevention Medicine R
Acceso en línea:	https://doaj.org/article/bac168b1248b47a9a2069e70277d1068
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spelling	oai:doaj.org-article:bac168b1248b47a9a2069e70277d10682021-12-05T21:26:50ZEpidemiology of COVID-19: What have we learnt until now?0369-15272466-552510.5937/mp72-34099https://doaj.org/article/bac168b1248b47a9a2069e70277d10682021-01-01T00:00:00Zhttps://scindeks-clanci.ceon.rs/data/pdf/0369-1527/2021/0369-15272103008P.pdfhttps://doaj.org/toc/0369-1527https://doaj.org/toc/2466-5525The first case in the outbreak of atypical pneumonia of unknown etiology, later confirmed as disease caused by SARS-CoV-2, was described in Wuhan (China) on December 8, 2019. The rapid expansion of COVID-19 cases prompted the World Health Organization (WHO) to declare a global health emergency, and on March 11, 2020, COVID-19 was officially classified as a pandemic disease by the WHO. It is generally accepted that both genders and all ages in the population are susceptible to SARS-CoV-2 infection. Data from the real life also show difficulties in reaching the threshold of herd immunity. Thanks to the vaccination, some populations are approaching the theoretical threshold of immunity, but the spread of the virus is still difficult to stop. If we add to that the fact that we still do not know how long immunity lasts after the infection, the conclusion is that vaccination is unlikely to completely stop the spread of the virus, and that we must think about it. Vaccines certainly significantly reduce the hospitalization rate and mortality rate, and the assumption is that the virus will not disappear soon, but the severity of the disease and its fatality will be of marginal importance. The development of the epidemiological situation related to the COVID-19 is constantly changing and it significantly differs in various parts of the world, which is affected by differences in financial resources, health infrastructure and awareness of prevention and control of the COVID-19. Attempts are being made to make dynamically adjusted strategies in response to the COVID-19 pandemic, that is, the new normality.Pekmezović TatjanaUniversity of Belgrade, Medical Facultyarticlecovid-19epidemiologyherd immunitypreventionMedicineRENSRMedicinski Podmladak, Vol 72, Iss 3, Pp 8-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN SR
topic	covid-19 epidemiology herd immunity prevention Medicine R
spellingShingle	covid-19 epidemiology herd immunity prevention Medicine R Pekmezović Tatjana Epidemiology of COVID-19: What have we learnt until now?
description	The first case in the outbreak of atypical pneumonia of unknown etiology, later confirmed as disease caused by SARS-CoV-2, was described in Wuhan (China) on December 8, 2019. The rapid expansion of COVID-19 cases prompted the World Health Organization (WHO) to declare a global health emergency, and on March 11, 2020, COVID-19 was officially classified as a pandemic disease by the WHO. It is generally accepted that both genders and all ages in the population are susceptible to SARS-CoV-2 infection. Data from the real life also show difficulties in reaching the threshold of herd immunity. Thanks to the vaccination, some populations are approaching the theoretical threshold of immunity, but the spread of the virus is still difficult to stop. If we add to that the fact that we still do not know how long immunity lasts after the infection, the conclusion is that vaccination is unlikely to completely stop the spread of the virus, and that we must think about it. Vaccines certainly significantly reduce the hospitalization rate and mortality rate, and the assumption is that the virus will not disappear soon, but the severity of the disease and its fatality will be of marginal importance. The development of the epidemiological situation related to the COVID-19 is constantly changing and it significantly differs in various parts of the world, which is affected by differences in financial resources, health infrastructure and awareness of prevention and control of the COVID-19. Attempts are being made to make dynamically adjusted strategies in response to the COVID-19 pandemic, that is, the new normality.
format	article
author	Pekmezović Tatjana
author_facet	Pekmezović Tatjana
author_sort	Pekmezović Tatjana
title	Epidemiology of COVID-19: What have we learnt until now?
title_short	Epidemiology of COVID-19: What have we learnt until now?
title_full	Epidemiology of COVID-19: What have we learnt until now?
title_fullStr	Epidemiology of COVID-19: What have we learnt until now?
title_full_unstemmed	Epidemiology of COVID-19: What have we learnt until now?
title_sort	epidemiology of covid-19: what have we learnt until now?
publisher	University of Belgrade, Medical Faculty
publishDate	2021
url	https://doaj.org/article/bac168b1248b47a9a2069e70277d1068
work_keys_str_mv	AT pekmezovictatjana epidemiologyofcovid19whathavewelearntuntilnow
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Epidemiology of COVID-19: What have we learnt until now?

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