scholarly journals Possible COVID-19 reinfection in a patient with X-linked agammaglobulinaemia

2021 ◽  
Vol 14 (3) ◽  
pp. e240765
Author(s):  
Sook Yin Loh ◽  
John Bassett ◽  
Emily Jayne Hoodless ◽  
Martin Walshaw
Keyword(s):  
Immune System ◽  
Reverse Transcriptase ◽  
Real Time ◽  
Reverse Transcriptase Pcr ◽  
Lessons Learnt ◽  
First Time

This report highlights the case of a patient with X-linked agammaglobulinaemia (XLA) and resultant bronchiectasis who was discharged from hospital after recovering from real-time reverse transcriptase-PCR positive COVID-19 infection having had a subsequent negative swab and resolution of symptoms, but was readmitted 3 weeks later with recrudescent symptoms and a further positive swab. Although there are reports of COVID-19 infection in XLA, for the first time we report a case of possible reinfection. Lessons learnt from this case include the potential for reinfection of COVID-19 in a patient with a weakened immune system and the importance of repeating COVID-19 swabs in inpatients. Extra caution needs to be taken when providing care in groups of patients who have a weakened or absent immune system.

Validation of a Real-Time Reverse Transcriptase–PCR Assay for the Detection of H7 Avian Influenza Virus

2010 ◽  
Vol 5 (s1) ◽  
pp. e148-e149
Author(s):  
Janice Pedersen ◽  
Mary Lea Killian ◽  
Nichole Hines ◽  
Dennis Senne ◽  
Brundaban Panigrahy ◽  
...  
Keyword(s):  
Influenza Virus ◽  
Avian Influenza ◽  
Reverse Transcriptase ◽  
Avian Influenza Virus ◽  
Real Time ◽  
Pcr Assay ◽  
Reverse Transcriptase Pcr

Development of asigDE-Based Real-Time Reverse-Transcriptase PCR for the Detection of ViableSalmonella enterica

2014 ◽  
Vol 11 (7) ◽  
pp. 537-544 ◽  
Author(s):  
Min Zhou ◽  
Jielin Yang ◽  
Xiujuan Zhou ◽  
Bin Liu ◽  
Daixin Liu ◽  
...  
Keyword(s):  
Reverse Transcriptase ◽  
Real Time ◽  
Reverse Transcriptase Pcr

scholarly journals Comparison of Rapid Antigen Test and Real-Time Reverse Transcriptase PCR for Diagnosing Novel Swine Influenza A (H1N1)

2010 ◽  
Vol 13 (3) ◽  
pp. 109 ◽  
Author(s):  
Aerin Kwon ◽  
Jae-Seok Kim ◽  
Han-Sung Kim ◽  
Wonkeun Song ◽  
Ji-Young Park ◽  
...  
Keyword(s):  
Reverse Transcriptase ◽  
Real Time ◽  
Influenza A ◽  
Swine Influenza ◽  
Antigen Test ◽  
Reverse Transcriptase Pcr ◽  
Influenza A H1n1

Novel Approach for Detecting Prohibited Species-Specific Central Nervous System Tissue Contamination in Meat by One-Step Real-Time Reverse Transcriptase PCR

2009 ◽  
Vol 72 (5) ◽  
pp. 1063-1069 ◽  
Author(s):  
M. M. NAGARAJAN ◽  
D. LONGTIN ◽  
C. SIMARD
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Reverse Transcriptase ◽  
Real Time ◽  
Compliance Monitoring ◽  
Reverse Transcriptase Pcr ◽  
Qrt Pcr ◽  
Tissue Contamination ◽  
One Step ◽  
Species Specific

The dissemination of prohibited species-specific central nervous system (CNS) tissue contamination in meat must be tracked to mitigate human health risk associated with bovine spongiform encephalopathy. The efficiency of compliance monitoring and risk control measures taken by concerned regulatory authorities at meat production facilities to avoid such contamination depends on the ability to detect CNS tissue with a reliable and adequately sensitive quantitative method. A rapid and convenient one-step real-time quantitative reverse transcriptase PCR (qRT-PCR) assay was developed based on the absolute quantification of glial fibrillary acidic protein (GFAP) mRNA as a marker for CNS tissue contamination in meat. The GFAP RNA quantity corresponding to a percentage of CNS tissue in artificially spiked meat was determined using an appropriate in vitro transcribed target GFAP RNA as a calibration standard in the assay. The assay had a linear dynamic range of 102 to 109 copies of target RNA and was able to detect 0.01% CNS contamination in meat. Further evaluation consisted of an analysis of 272 random meat cuts from carcasses and 109 ground meat samples received from a federally inspected abattoir and two meat processing facilities, respectively, over a 5-month period. The analyzed samples were all negative for CNS tissue contamination at an arbitrarily set lower threshold of 0.025%. Overall, the newly developed one-step qRT-PCR may be useful as an objective quantitative compliance monitoring tool and for setting an acceptable low tolerance threshold for such contamination in meat.

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