scholarly journals Conjunctiva-Upper Respiratory Tract Irrigation for Early Diagnosis of Severe Acute Respiratory Syndrome

2003 ◽  
Vol 41 (11) ◽  
pp. 5352-5352 ◽  
Author(s):  
T. R. Tong ◽  
B. H. Lam ◽  
T.-k. Ng ◽  
S.-t. Lai ◽  
M. K. Tong ◽  
...  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Early Diagnosis ◽  
Respiratory Tract ◽  
Upper Respiratory Tract ◽  
Upper Respiratory

scholarly journals Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Viral Load in the Upper Respiratory Tract of Children and Adults With Early Acute Coronavirus Disease 2019 (COVID-19)

2020 ◽  
Author(s):  
Stéphanie Baggio ◽  
Arnaud G L’Huillier ◽  
Sabine Yerly ◽  
Mathilde Bellon ◽  
Noémie Wagner ◽  
...  
Keyword(s):  
Viral Load ◽  
Severe Acute Respiratory Syndrome ◽  
Respiratory Tract ◽  
Symptom Onset ◽  
Upper Respiratory Tract ◽  
Upper Respiratory

Abstract The factors that contribute to transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by children are unclear. We analyzed viral load at the time of diagnosis in 53 children and 352 adults with coronavirus disease 2019 (COVID-19) in the first 5 days post symptom onset. No significant differences in SARS-CoV-2 RNA loads were seen between children and adults.

scholarly journals Duration of infectiousness and correlation with RT-PCR cycle threshold values in cases of COVID-19, England, January to May 2020

2020 ◽  
Vol 25 (32) ◽  
Author(s):  
Anika Singanayagam ◽  
Monika Patel ◽  
Andre Charlett ◽  
Jamie Lopez Bernal ◽  
Vanessa Saliba ◽  
...  
Keyword(s):  
Viral Load ◽  
Severe Acute Respiratory Syndrome ◽  
Respiratory Tract ◽  
Symptom Onset ◽  
Infectious Virus ◽  
Upper Respiratory Tract ◽  
Threshold Values ◽  
Rt Pcr ◽  
Cycle Threshold ◽  
Upper Respiratory

Severe acute respiratory syndrome coronavirus 2 viral load in the upper respiratory tract peaks around symptom onset and infectious virus persists for 10 days in mild-to-moderate coronavirus disease (n = 324 samples analysed). RT-PCR cycle threshold (Ct) values correlate strongly with cultivable virus. Probability of culturing virus declines to 8% in samples with Ct > 35 and to 6% 10 days after onset; it is similar in asymptomatic and symptomatic persons. Asymptomatic persons represent a source of transmissible virus.

scholarly journals Upper Respiratory Tract Levels of Severe Acute Respiratory Syndrome Coronavirus 2 RNA and Duration of Viral RNA Shedding Do Not Differ Between Patients With Mild and Severe/Critical Coronavirus Disease 2019

2020 ◽  
Vol 223 (1) ◽  
pp. 15-18
Author(s):  
Aylin Yilmaz ◽  
Emelie Marklund ◽  
Maria Andersson ◽  
Staffan Nilsson ◽  
Lars-Magnus Andersson ◽  
...  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Respiratory Tract ◽  
Viral Rna ◽  
Upper Respiratory Tract ◽  
Moderate Correlation ◽  
Duration Of Symptoms ◽  
Viral Loads ◽  
Upper Respiratory

Abstract This study reports longitudinal viral RNA loads from the nasopharynx/throat in patients with mild and severe/critical coronavirus disease 2019 (COVID-19). We also investigated whether the duration of symptoms correlated with the duration of viral RNA shedding. A total of 56 patients were included. The highest viral loads occurred early after onset of symptoms. Neither the viral RNA loads in the upper respiratory tract nor the time to viral RNA clearance differed between patients with mild or severe/critical disease. There was a moderate correlation between number of days with symptoms and number of days with viral RNA shedding in patients with mild COVID-19.

Allergy of the Upper Respiratory Tract

1970 ◽  
Vol 3 (2) ◽  
pp. 265-276 ◽  
Author(s):  
Jack D. Clemis ◽  
Eugene L. Derlacki
Keyword(s):  
Respiratory Tract ◽  
Upper Respiratory Tract ◽  
Upper Respiratory
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