Selected article for: "asymptomatic infection and viral infection"

Author: Raina MacIntyre, C.; Chughtai, Abrar Ahmad; Zhang, Yi; Seale, Holly; Yang, Peng; Chen, Joshua; Pan, Yang; Zhang, Daitao; Wang, Quanyi
Title: Viral and bacterial upper respiratory tract infection in hospital health care workers over time and association with symptoms
  • Document date: 2017_8_9
  • ID: 1ckykkob_4
    Snippet: The finding of a virus in the upper respiratory tract is generally thought to be clinically significant. However the significance of asymptomatic viral infection has not been explored in existing literature, and viruses detected in the upper respiratory tract are generally assumed to be pathogenic. Some studies have found that up to 1 in 3 subjects with influenza infection may be asymptomatic [22] , whilst asymptomatic infection with parainfluenz.....
    Document: The finding of a virus in the upper respiratory tract is generally thought to be clinically significant. However the significance of asymptomatic viral infection has not been explored in existing literature, and viruses detected in the upper respiratory tract are generally assumed to be pathogenic. Some studies have found that up to 1 in 3 subjects with influenza infection may be asymptomatic [22] , whilst asymptomatic infection with parainfluenza virus has also been observed [23] . One study also demonstrated shedding of parainfluenza virus from healthy subjects over an extended period of time [24] . Whilst little research exists on asymptomatic viral infections, these cases suggest that viruses can be transmitted by asymptomatic subjects unknowingly. A better understanding of the role of bacterial and viral infections in HCWs and their association with the respiratory symptoms is warranted. The aim of this study was to examine the presence and significance of bacteria and viruses in the upper respiratory tract of HCWs.

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