scholarly journals Croup Is One of the Clinical Manifestations of Novel Coronavirus in Children

2021 ◽  
Vol 2021 ◽  
pp. 1-3
Author(s):  
Mojtaba Kamali Aghdam ◽  
Hosein Shabani Mirzaee ◽  
Kambiz Eftekhari
Keyword(s):  
General Condition ◽  
Clinical Manifestations ◽  
Pcr Assay ◽  
Mechanically Ventilated ◽  
Respiratory Involvement ◽  
Bacterial Tracheitis ◽  
Good General Condition ◽  
Polymerase Chain ◽  
Novel Coronavirus ◽  
Short Time

The manifestations of novel coronavirus are diverse and can manifest through respiratory, gastrointestinal, and even nervous symptoms. Respiratory involvement is usually an upper tract infection or pneumonia but can also present as other forms of pulmonary disorders. A 3-year-old boy presented with cough, hoarseness, and stridor. He was treated with dexamethasone and nebulized adrenaline and a clinical diagnosis of croup was established. After treatment, his symptoms improved for a short time, but suddenly cough exacerbated and was accompanied by respiratory failure and seizures. He was then intubated and mechanically ventilated. Because of the coronavirus epidemic, Reverse-Transcription Polymerase Chain Reaction (RT-PCR) assay was taken from the pharyngeal secretions and was positive. The child was isolated. Due to excessive respiratory secretions and worsening of the general condition, bronchoscopy was performed depicting an image compatible with bacterial tracheitis. He was treated with broad-spectrum antibiotics, antivirals, and supportive care. Finally, after 4 weeks of treatment, the child was discharged in good general condition. Croup is one of the respiratory symptoms of novel coronavirus and can be a risk factor for bacterial tracheitis. Therefore, the presence of clinical manifestations of croup indicates the need for coronavirus PCR testing.

scholarly journals Severe Acute Respiratory Syndrome Coronavirus-2 and Pulmonary Tuberculosis Coinfection: Double Trouble

2020 ◽  
Author(s):  
Abhijeet Singh ◽  
Ayush Gupta ◽  
Kamanashish Das
Keyword(s):  
Throat Swab ◽  
Mycobacterium Tuberculosis Complex ◽  
Swab Sample ◽  
Rt Pcr ◽  
Tuberculosis Complex ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Case Presentation ◽  
Polymerase Chain ◽  
Novel Coronavirus

Abstract Background: The ongoing pandemic of novel coronavirus disease 2019 (COVID-19) has received worldwide attention by becoming a major global health threat. We encountered one case with COVID-19 and tuberculosis (TB) coinfection which has not been frequently reported. Case presentation: A 76 year old female presented with acute respiratory symptoms superimposed on chronic symptoms, suggestive to have pneumonia. Oropharyngeal throat swab sample for COVID-19 was positive as detected by real-time reverse-transcriptase–polymerase-chain-reaction (RT-PCR) assay. GeneXpert Ultra detected Mycobacterium tuberculosis complex with Rifampicin resistance indeterminate. Patient was treated with appropriate management. Conclusion: Clinicians should suspect coinfection with TB during ongoing pandemic of COVID-19 as therapeutic strategies need to be determined timely to improve outcome and prevent transmission in community.

scholarly journals ISOLATION OF NOVEL CORONAVIRUS IN TEARS AND CONJUNCTIVAL SECRETIONS FROM COVID-19 PATIENTS PRESENTING WITH KERATOCONJUNTIVITIS

2020 ◽  
pp. 1-2
Author(s):  
Mittal S ◽  
Tomar R ◽  
Garg A
Keyword(s):  
Polymerase Chain Reaction ◽  
Reverse Transcriptase ◽  
Rt Pcr ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Polymerase Chain ◽  
Novel Coronavirus

This study aimed to assess the isolation of novel coronavirus in tears and conjunctival secretions by reverse transcriptase polymerase chain reaction (RT-PCR) assay from novel coronavirus disease 2019 (COVID-19) patients presenting with keratoconjunctivitis.

scholarly journals Development of a Novel, Genome Subtraction-Derived, SARS-CoV-2-Specific COVID-19-nsp2 Real-Time RT-PCR Assay and Its Evaluation Using Clinical Specimens

2020 ◽  
Vol 21 (7) ◽  
pp. 2574 ◽  
Author(s):  
Cyril Chik-Yan Yip ◽  
Chi-Chun Ho ◽  
Jasper Fuk-Woo Chan ◽  
Kelvin Kai-Wang To ◽  
Helen Shuk-Ying Chan ◽  
...  
Keyword(s):  
Real Time ◽  
Limit Of Detection ◽  
Respiratory Viruses ◽  
Rt Pcr ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Clinical Specimens ◽  
Coronavirus Infection ◽  
Polymerase Chain ◽  
Novel Coronavirus

The pandemic novel coronavirus infection, Coronavirus Disease 2019 (COVID-19), has affected at least 190 countries or territories, with 465,915 confirmed cases and 21,031 deaths. In a containment-based strategy, rapid, sensitive and specific testing is important in epidemiological control and clinical management. Using 96 SARS-CoV-2 and 104 non-SARS-CoV-2 coronavirus genomes and our in-house program, GolayMetaMiner, four specific regions longer than 50 nucleotides in the SARS-CoV-2 genome were identified. Primers were designed to target the longest and previously untargeted nsp2 region and optimized as a probe-free real-time reverse transcription-polymerase chain reaction (RT-PCR) assay. The new COVID-19-nsp2 assay had a limit of detection (LOD) of 1.8 TCID50/mL and did not amplify other human-pathogenic coronaviruses and respiratory viruses. Assay reproducibility in terms of cycle threshold (Cp) values was satisfactory, with the total imprecision (% CV) values well below 5%. Evaluation of the new assay using 59 clinical specimens from 14 confirmed cases showed 100% concordance with our previously developed COVID-19-RdRp/Hel reference assay. A rapid, sensitive, SARS-CoV-2-specific real-time RT-PCR assay, COVID-19-nsp2, was developed.

scholarly journals Severe Acute Respiratory Syndrome Coronavirus-2 and Pulmonary Tuberculosis Coinfection: Double Trouble

2020 ◽  
Author(s):  
Abhijeet Singh ◽  
Ayush Gupta ◽  
Kamanashish Das
Keyword(s):  
Pulmonary Tuberculosis ◽  
Throat Swab ◽  
Mycobacterium Tuberculosis Complex ◽  
Swab Sample ◽  
Rt Pcr ◽  
Tuberculosis Complex ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Polymerase Chain ◽  
Novel Coronavirus

Abstract The ongoing pandemic of novel coronavirus disease 2019 (COVID-19) has received worldwide attention by becoming a major global health threat. We encountered one case of COVID-19 and pulmonary tuberculosis (TB) coinfection which has not been frequently reported. A 76 year old female presented with acute respiratory symptoms superimposed on chronic symptoms, suggestive to have pneumonia. Oropharyngeal throat swab sample for COVID-19 was positive as detected by real-time reverse-transcriptase–polymerase-chain-reaction (RT-PCR) assay. GeneXpert Ultra detected Mycobacterium tuberculosis complex with Rifampicin resistance indeterminate. Patient was conservatively treated with appropriate management. Clinicians should suspect COVID-19 coinfection with pulmonary TB while treating during ongoing pandemic as therapeutic strategies need to be determined accordingly to improve outcome and prevent transmission in community.

scholarly journals Severe Acute Respiratory Syndrome Coronavirus-2 and Pulmonary Tuberculosis Coinfection: Double Trouble

2020 ◽  
Author(s):  
Abhijeet Singh ◽  
Ayush Gupta ◽  
Kamanashish Das
Keyword(s):  
Throat Swab ◽  
Mycobacterium Tuberculosis Complex ◽  
Swab Sample ◽  
Rt Pcr ◽  
Tuberculosis Complex ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Case Presentation ◽  
Polymerase Chain ◽  
Novel Coronavirus

Abstract Background: The ongoing pandemic of novel coronavirus disease 2019 (COVID-19) has received worldwide attention by becoming a major global health threat. We encountered one case with COVID-19 and tuberculosis (TB) coinfection which has not been frequently reported. Case presentation: A 76 year old female presented with acute respiratory symptoms superimposed on chronic symptoms, suggestive to have pneumonia. Oropharyngeal throat swab sample for COVID-19 was positive as detected by real-time reverse-transcriptase–polymerase-chain-reaction (RT-PCR) assay. GeneXpert Ultra detected Mycobacterium tuberculosis complex with Rifampicin resistance indeterminate. Patient was treated with appropriate management. Conclusion: Clinicians should suspect coinfection with TB during ongoing pandemic of COVID-19 as therapeutic strategies need to be determined timely to improve outcome and prevent transmission in community.

scholarly journals Severe Acute Respiratory Syndrome Coronavirus-2 and Pulmonary Tuberculosis Coinfection: Double Trouble

2020 ◽  
Author(s):  
Abhijeet Singh ◽  
Ayush Gupta ◽  
Kamanashish Das
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Pulmonary Tuberculosis ◽  
Throat Swab ◽  
Sputum Smear ◽  
Swab Sample ◽  
Rt Pcr ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Polymerase Chain ◽  
Novel Coronavirus

Abstract The ongoing pandemic of novel coronavirus Severe Acute Respiratory Syndrome Coronavirus - 2 (SARS-CoV-2) has received worldwide attention by becoming a major global health threat. We encountered one case of SARS-CoV-2 and pulmonary tuberculosis (TB) coinfection which has not been frequently reported. A 76 year old female presented with acute respiratory symptoms superimposed on chronic symptoms, suggestive to have pneumonia. Oropharyngeal throat swab sample for SARS-CoV-2 infection was positive as detected by real-time reverse-transcriptase–polymerase-chain-reaction (RT-PCR) assay. Sputum smear staining was positive for acid fast bacilli. Clinicians should suspect coinfection with pulmonary TB while treating Coronavirus disease 2019 (COVID-19) during ongoing pandemic as therapeutic strategies need to be determined accordingly to improve outcome and prevent transmission in community.

scholarly journals Mimickers of novel coronavirus disease 2019 (COVID-19) on chest CT: spectrum of CT and clinical features

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ali H. Elmokadem ◽  
Nihal M. Batouty ◽  
Dalia Bayoumi ◽  
Basma N. Gadelhak ◽  
Rihame M. Abdel-Wahab ◽  
...  
Keyword(s):  
Pulmonary Infection ◽  
High Sensitivity ◽  
Chest Ct ◽  
Rt Pcr ◽  
Pcr Assay ◽  
Erroneous Diagnosis ◽  
Polymerase Chain ◽  
Novel Coronavirus ◽  
Clinical Conditions ◽  
Ct Features

AbstractCOVID-19 (coronavirus disease 2019) is a recently emerged pulmonary infection caused by severe acute respiratory syndrome coronavirus (SARS-CoV-2). It started in Wuhan, China, in December 2019 and led to a highly contagious disease. Since then COVID-19 continues to spread, causing exponential morbidity and mortality and threatening economies worldwide. While the primary diagnostic test for COVID-19 is the reverse transcriptase–polymerase chain reaction (RT-PCR) assay, chest CT has proven to be a diagnostic tool of high sensitivity. A variety of conditions demonstrates CT features that are difficult to differentiate from COVID-19 rendering CT to be of low specificity. Radiologists and physicians should be aware of imaging patterns of these conditions to prevent an erroneous diagnosis that could adversely influence management and patients’ outcome. Our purpose is to provide a practical review of the conditions that mimic COVID-19. A brief description of the forementioned clinical conditions with their CT features will be included.

Polymerase chain reaction amplification and typing of rotavirus in environmental samples

1995 ◽  
Vol 31 (5-6) ◽  
pp. 371-374 ◽  
Author(s):  
R. Gajardo ◽  
R. M. Pintó ◽  
A. Bosch
Keyword(s):  
Polymerase Chain Reaction ◽  
Environmental Samples ◽  
Polymerase Chain Reaction Amplification ◽  
Rt Pcr ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Group A ◽  
Reaction Amplification ◽  
Stool Specimens ◽  
Polymerase Chain

A reverse transcription polymerase chain reaction (RT-PCR) assay is described that has been developed for the detection and serotyping of group A rotavirus in stool specimens and concentrated and non-concentrated sewage specimens.

scholarly journals Is it enough for COVID-19 screening test? Limitation of swab test and general characteristics of mild symptom patients

2021 ◽  
Vol 104 (2) ◽  
pp. 003685042110261
Author(s):  
Sungwoo Choi ◽  
Hyo Jeong Choi ◽  
Ho Jung Kim
Keyword(s):  
Screening Test ◽  
Community Treatment ◽  
Upper Respiratory Tract ◽  
Test Results ◽  
Rt Pcr ◽  
Pcr Assay ◽  
Positive Rate ◽  
Upper Respiratory ◽  
Polymerase Chain ◽  
Discharge Criteria

The most common method for SARS-CoV-2 testing is throat or nasal swabbing by real-time reverse transcription polymerase chain reaction (RT-PCR) assay. In South Korea, drive-through swab test is used for screening system and community treatment centers (CTCs), which admit and treat confirmed COVID-19 patients with mild symptoms, are being used. This retrospective study was conducted on patients admitted to a CTC on March 6, 2020. A total of 313 patients were admitted. The nasal and throat swabs were collected from the upper respiratory tract, and a sputum test was performed to obtain lower respiratory samples. The positive rate of the first set of test, sputum test was higher than that of the swab test ( p = 0.011). In the second set of test, 1 week after the first ones, the rate of positive swab tests was relatively high ( p = 0.026). In the first set of test, 66 of 152 (43.4%) patients showed 24-h consecutive negative swab test results, when the sputum test results were considered together, that number fell to 29 patients (19.1%) ( p < 0.001). Also, in the second set of test, 63 of 164 (38.4%) patients met the discharge criteria only when the swab test was considered; that number fell to 30 (18.3%) when the sputum test results were also considered ( p < 0.001). Using the swab test alone is insufficient for screening test and discharge decision. Patients who may have positive result in the sputum test can be missed.

scholarly journals Pediatric COVID-19 and the Factors That May Mitigate Its Clinical Course

2020 ◽  
Vol 10 (01) ◽  
pp. e137-e140
Author(s):  
Mosaad Abdel-Aziz ◽  
Nada M. Abdel-Aziz ◽  
Dina M. Abdel-Aziz ◽  
Noha Azab
Keyword(s):  
Clinical Features ◽  
Clinical Symptoms ◽  
Clinical Course ◽  
Clinical Manifestations ◽  
Gastrointestinal Symptoms ◽  
Angiotensin Converting Enzyme 2 ◽  
Compulsory Vaccination ◽  
Specific Factors ◽  
Novel Coronavirus ◽  
Radiographic Data

AbstractThe clinical manifestations of novel coronavirus disease 2019 (COVID-19) vary from mild flu-like symptoms to severe fatal pneumonia. However, children with COVID-19 may be asymptomatic or may have mild clinical symptoms. The aim of this study was to investigate clinical features of pediatric COVID-19 and to search for the factors that may mitigate the disease course. We reviewed the literature to realize the clinical features, laboratory, and radiographic data that may be diagnostic for COVID-19 among children. Also, we studied the factors that may affect the clinical course of the disease. Fever, dry cough, and fatigue are the main symptoms of pediatric COVID-19, sometimes flu-like symptoms and/or gastrointestinal symptoms may be present. Although some infected children may be asymptomatic, a recent unusual hyperinflammatory reaction with overlapping features of Kawasaki's disease and toxic shock syndrome in pediatric COVID-19 has been occasionally reported. Severe acute respiratory syndrome-coronvirus-2 (SARS-CoV-2) nucleic acid testing is the corner-stone method for the diagnosis of COVID-19. Lymphocyte count and other inflammatory markers are not essentially diagnostic; however, chest computed tomography is highly specific. Factors that may mitigate the severity of pediatric COVID-19 are home confinement with limited children activity, trained immunity caused by compulsory vaccination, the response of the angiotensin-converting enzyme 2 receptors in children is not the same as in adults, and that children are less likely to have comorbidities. As infected children may be asymptomatic or may have only mild respiratory and/or gastrointestinal symptoms that might be missed, all children for families who have a member diagnosed with COVID-19 should be investigated.

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