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Coronavirus: Update Related to the Current Outbreak of COVID-19
Giovanni Gabutti1, Erica d'Anchera2, Federica Sandri2
1Department of Medical Sciences, University of Ferrara, Ferrara, Italy.
Insights
Coronaviruses, including COVID-19 (coronavirus disease 2019) caused by SARS-CoV-2, spread globally via droplets and contact. Prevention strategies are crucial to limit transmission and mitigate severe illness, especially in vulnerable populations.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- The emergence of a novel coronavirus, SARS-CoV-2, in Wuhan, China, led to the COVID-19 pandemic.
- COVID-19, officially named by the WHO, shares characteristics with SARS and MERS, causing a spectrum of respiratory illness.
- The virus is suspected to originate from bats, with an unidentified intermediate host, and primarily affects lower airway cells.
Purpose of the Study:
- To provide an overview of the emergence and characteristics of COVID-19 and SARS-CoV-2.
- To highlight the transmission routes and clinical manifestations of the disease.
- To emphasize the importance of prevention strategies in controlling the global spread.
Main Methods:
- Literature review and synthesis of available epidemiological data.
- Analysis of viral characteristics and transmission mechanisms.
- Review of clinical presentations and prognostic factors.
Main Results:
- As of March 10, 2020, over 113,702 cases were reported worldwide.
- SARS-CoV-2 replicates in lower airway cells, with transmission occurring via droplets and contact.
- Severe clinical outcomes, including sepsis and ARDS, are observed, with higher risk in the elderly and those with comorbidities.
Conclusions:
- No specific therapy is currently available for COVID-19.
- Effective prevention strategies are essential to contain the spread of SARS-CoV-2.
- International and national bodies are continuously updating guidelines to manage the pandemic.
Abstract:
In December 2019, some cases of viral pneumonia were epidemiologically related to a new coronavirus in the province of Hubei, China. Subsequently, there has been an increase in infections attributable to this virus throughout China and worldwide. The World Health Organization (WHO) has officially named the infection coronavirus disease 2019 (COVID-19), and the virus has been classified as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This appears to be a virus from Rhinolophus bats, but the intermediate host has not yet been identified. The mechanism of infection of SARS-CoV-2 is not yet known; it appears to have affinity for cells located in the lower airways, where it replicates. The interhuman transmission of coronaviruses mainly occurs through saliva droplets and direct and indirect contact via surfaces. As of March 10, 2020, the number of cases worldwide was 113,702. Along with severe acute respiratory syndrome (SARS) and Middle Eastern respiratory syndrome (MERS), COVID-19 appears to cause a severe clinical picture in humans, ranging from mild malaise to death by sepsis/acute respiratory distress syndrome. The prognosis is worse in elderly patients with comorbidities. To date, there is no specific therapy for COVID-19. Prevention of SARS-CoV-2 infection implies strategies that limit the spread of the virus. WHO and other international and national bodies have developed continuously updated strategic objectives and provisions to contain the spread of the virus and infection.
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