Asintomatici SARS-CoV-2 e trasmissione dell’infezione.

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Asintomatici SARS-CoV-2 e trasmissione dell’infezione. Studio sulla possibilità che gli asintomatici SARS-CoV-2 possano trasmettere l’infezione è stato pubblicato su “Respir Med. 2020 May 13;169:106026. doi: 10.1016/j.rmed.2020.106026.” e chiaramente reso alla visione di tutti su PubMed.gov da cui potrete scaricare gratuitamente l’intero articolo.

A Study on Infectivity of Asymptomatic SARS-CoV-2 Carriers

Ming Gao 1Lihui Yang 2Xuefu Chen 3Yiyu Deng 4Shifang Yang 5Hanyi Xu 6Zixing Chen 7Xinglin Gao 8

Abstract

Background: An ongoing outbreak of coronavirus disease 2019 (COVID-19) has spread around the world. It is debatable whether asymptomatic COVID-19 virus carriers are contagious. We report here a case of the asymptomatic patient and present clinical characteristics of 455 contacts, which aims to study the infectivity of asymptomatic carriers.

Vengono riportati 455 casi di asintomatici.

Material and methods: 455 contacts who were exposed to the asymptomatic COVID-19 virus carrier became the subjects of our research. They were divided into three groups: 35 patients, 196 family members and 224 hospital staffs. We extracted their epidemiological information, clinical records, auxiliary examination results and therapeutic schedules.

Asintomatici SARS-CoV-2 e trasmissione dell’infezione.

Hanno diviso i casi in tre gruppi: un gruppo di 35 pazienti, un gruppo dei 196 membri della famiglia dei contagiati e terzo gruppo, 224 persone dello staff ospedaliero

Results: The median contact time for patients was four days and that for family members was five days. Cardiovascular disease accounted for 25% among original diseases of patients. Apart from hospital staffs, both patients and family members were isolated medically. During the quarantine, seven patients plus one family member appeared new respiratory symptoms, where fever was the most common one. The blood counts in most contacts were within a normal range. All CT images showed no sign of COVID-19 infection. No severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections was detected in 455 contacts by nucleic acid test.

Conclusion: In summary, all the 455 contacts were excluded from SARS-CoV-2 infection and we conclude that the infectivity of some asymptomatic SARS-CoV-2 carriers might be weak.

In sintesi, tutti i 455 contatti sono stati esclusi dall’infezione SARS-CoV-2 e concludiamo che l’infettività di alcuni portatori asintomatici di SARS-CoV-2 potrebbe essere debole.

Keywords: Asymptomatic carrier; Contacts; Infectivity; SARS-CoV-2.

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