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An Overview of the Temporal Shedding of SARS-CoV-2 RNA in Clinical Specimens.


ABSTRACT: Coronavirus disease 2019 quickly spread in China and has, since March 2020 become a pandemic, causing hundreds of thousands of deaths worldwide. The causative agent was promptly isolated and named SARS-CoV-2. Scientific efforts are related to identifying the best clinical management of these patients, but also in understanding their infectivity in order to limit the spread of the virus. Aimed at identifying viral RNA in the various compartments of the organism of sick subjects, diagnostic tests are carried out. However, the accuracy of such tests varies depending on the type of specimen used and the time of illness at which they are performed. This review of the literature aims to summarize the preliminary findings reported in studies on Covid-19 testing. The results highlight how the pharyngeal swab is highly sensitive in the first phase of the disease, while in the advanced stages, other specimens should be considered, such as sputum, or even stool to detect SARS-CoV-2. It highlights that most patients already reach the peak of the viral load in the upper airways within the first days of displaying symptoms, which thereafter tend to decrease. This suggests that many patients may already be infectious before symptoms start to appear.

SUBMITTER: Zhurakivska K 

PROVIDER: S-EPMC7468374 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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An Overview of the Temporal Shedding of SARS-CoV-2 RNA in Clinical Specimens.

Zhurakivska Khrystyna K   Troiano Giuseppe G   Pannone Giuseppe G   Caponio Vito Carlo Alberto VCA   Lo Muzio Lorenzo L  

Frontiers in public health 20200820


Coronavirus disease 2019 quickly spread in China and has, since March 2020 become a pandemic, causing hundreds of thousands of deaths worldwide. The causative agent was promptly isolated and named SARS-CoV-2. Scientific efforts are related to identifying the best clinical management of these patients, but also in understanding their infectivity in order to limit the spread of the virus. Aimed at identifying viral RNA in the various compartments of the organism of sick subjects, diagnostic tests  ...[more]

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