scholarly journals KI and WU Polyomavirus in Respiratory Samples of SARS-CoV-2 Infected Patients

2021 ◽  
Vol 9 (6) ◽  
pp. 1259
Author(s):  
Carla Prezioso ◽  
Ugo Moens ◽  
Giuseppe Oliveto ◽  
Gabriele Brazzini ◽  
Francesca Piacentini ◽  
...  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Healthcare Workers ◽  
Respiratory Pathogens ◽  
Threshold Values ◽  
Cycle Threshold ◽  
Viral Interference ◽  
Disease Outcomes ◽  
Global Pandemic ◽  
Wu Polyomavirus ◽  
Washington University

Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has been declared a global pandemic. Our goal was to determine whether co-infections with respiratory polyomaviruses, such as Karolinska Institutet polyomavirus (KIPyV) and Washington University polyomavirus (WUPyV) occur in SARS-CoV-2 infected patients. Oropharyngeal swabs from 150 individuals, 112 symptomatic COVID-19 patients and 38 healthcare workers not infected by SARS-CoV-2, were collected from March 2020 through May 2020 and tested for KIPyV and WUPyV DNA presence. Of the 112 SARS-CoV-2 positive patients, 27 (24.1%) were co-infected with KIPyV, 5 (4.5%) were positive for WUPyV, and 3 (2.7%) were infected simultaneously by KIPyV and WUPyV. Neither KIPyV nor WUPyV DNA was detected in samples of healthcare workers. Significant correlations were found in patients co-infected with SARS-CoV-2 and KIPyV (p < 0.05) and between SARS-CoV-2 cycle threshold values and KIPyV, WUPyV and KIPyV and WUPyV concurrently detected (p < 0.05). These results suggest that KIPyV and WUPyV may behave as opportunistic respiratory pathogens. Additional investigations are needed to understand the epidemiology and the prevalence of respiratory polyomavirus in COVID-19 patients and whether KIPyV and WUPyV could potentially drive viral interference or influence disease outcomes by upregulating SARS-CoV-2 replicative potential.

scholarly journals Homegrown Ultraviolet Germicidal Irradiation for Hospital-Based N95 Decontamination during the COVID-19 Pandemic

2020 ◽  
Author(s):  
Eric Schnell ◽  
Melanie J. Harriff ◽  
Jane E. Yates ◽  
Elham Karamooz ◽  
Christopher D. Pfeiffer ◽  
...  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Healthcare Workers ◽  
Global Supply Chains ◽  
Protective Equipment ◽  
Respiratory Protection ◽  
Exposure Risk ◽  
High Demand ◽  
Ultraviolet Germicidal Irradiation ◽  
Global Pandemic ◽  
Ultraviolet C

AbstractCoronavirus disease (COVID-19), the disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus, is responsible for the 2020 global pandemic and characterized by high transmissibility and morbidity. Healthcare workers (HCWs) are at risk of contracting COVID-19, and this risk is mitigated through the use of personal protective equipment such as N95 Filtering Facepiece Respirators (FFRs). The high demand for FFRs is not currently met by global supply chains, potentially placing HCWs at increased exposure risk. Effective FFR decontamination modalities exist, which could maintain respiratory protection for HCWs in the midst of the current pandemic, through the decontamination and re-use of FFRs. Here, we present a locally-implemented ultraviolet-C germicidal irradiation (UVGI)-based FFR decontamination pathway, utilizing a home-built UVGI array assembled entirely with previously existing components available at our institution. We provide recommendations on the construction of similar systems, as well as guidance and strategies towards successful institutional implementation of FFR decontamination.

scholarly journals Lower SARS-CoV-2 viral shedding following COVID-19 vaccination among healthcare workers in Los Angeles, California

2021 ◽  
Author(s):  
Paul C Adamson ◽  
Michael A Pfeffer ◽  
Valerie A Arboleda ◽  
Omai B Garner ◽  
Annabelle de St. Maurice ◽  
...  
Keyword(s):  
Los Angeles ◽  
Healthcare Workers ◽  
Vaccine Dose ◽  
Threshold Values ◽  
Cycle Threshold ◽  
Viral Shedding

Abstract Among 880 healthcare workers with a positive SARS-CoV-2 test, 264 (30.0%) infections were identified following receipt of at least one vaccine dose. Median SARS-CoV-2 cycle threshold values were highest among individuals receiving two vaccine doses, corresponding to lower viral shedding. Vaccination might lead to lower transmissibility of SARS-CoV-2.

scholarly journals Association of cycle threshold values of CBNAAT with severity and outcome in COVID-19

2021 ◽  
Author(s):  
Kranti Garg ◽  
Karan Sharma ◽  
Aditi Gupta ◽  
Vishal Chopra
Keyword(s):  
Viral Load ◽  
Virus Disease ◽  
Nucleic Acid Amplification ◽  
Clinical Parameters ◽  
Surrogate Markers ◽  
Threshold Values ◽  
Cycle Threshold ◽  
E Gene ◽  
Disease Outcomes

Determination of viral load through cycle threshold (Ct) values may act as a predictor of severity and outcomes in patients with corona virus disease 2019 (COVID-19). However, variable literature is available regarding this relationship. Our study attempted to explore this association and the effect of various socio-demographic and clinical parameters on severity and outcome of COVID-19.  Retrospective analysis of records of 731 patients whose nasopharyngeal/ oropharyngeal swabs were subjected to cartridge based nucleic acid amplification (CBNAAT) on Cepheid Xpert Xpress SARS-Cov-2 was done. Cycle threshold (Ct) values of N2 and E genes were studied in relation to severity and outcome of COVID-19. The viral load as determined by Ct values was classified as high (<25), medium (25.1-32) and low (>32). Association of socio-demographic and clinical parameters with respect to severity and outcome was also studied. Severity and mortality were significantly more in elder individuals, those belonging to the rural background, those with symptoms >7 days in duration before presentation and those with increasing number of co-morbidities (Severity: p<0.001, mortality: p <0.001, 0.005, 0.006 and <0.001 respectively). The Ct values of gene N2 and E inversely correlated with severity and mortality from the disease (N2 gene: p=0.001 for both severity and mortality, E gene: severity: p<0.001, mortality: p=0.016 respectively). The severity of the illness and chances of mortality were significantly lesser when the CT value of N2 gene was >32, in comparison when it was upto 25, and when between 25.1 and 32 (severity: p=0.032 and 0.003 respectively, mortality: p=0.018 and <0.001 respectively). Almost similar trends were seen with respect to E gene (severity: p<0.001 and 0.067 respectively, mortality p=0.175 and 0.005 respectively). Viral load as determined by Ct values of N2 and E genes can act as surrogate markers for prediction of severity and disease outcomes in COVID-19.

scholarly journals Time Length of Negativization and Cycle Threshold Values in 182 Healthcare Workers with Covid-19 in Milan, Italy: An Observational Cohort Study

2020 ◽  
Vol 17 (15) ◽  
pp. 5313 ◽  
Author(s):  
Lisa Cariani ◽  
Beatrice Silvia Orena ◽  
Federico Ambrogi ◽  
Simone Gambazza ◽  
Anna Maraschini ◽  
...  
Keyword(s):  
Healthcare Workers ◽  
Age Groups ◽  
Threshold Values ◽  
Time Length ◽  
Cycle Threshold ◽  
Observational Cohort ◽  
Returning To Work ◽  
Set Up ◽  
Spread Of Infection

Background: Coronavirus Disease 2019 (COVID-19) has rapidly spread worldwide, becoming an unprecedented public health emergency. Rapid detection of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) suspected cases is crucial to control the spread of infection. We aimed to evaluate the time length of negativization from the onset of symptoms in healthcare workers (HCWs) with COVID-19, and to evaluate significant variations in cycle threshold (CT) values and gene positivity (E, RdRP, and N genes) among positive individuals who returned to work. Methods: We retrospectively analyzed a consecutive cohort of 182 SARS-CoV-2-positive HCWs in Milan, from 16 March to 30 April 2020. Nasopharyngeal swabs were tested by RT-PCR. Results: Asymptomatic HCWs were 17.6% (32/182), and 58 healed at 30 April 2020. The median time length of negativization was 4 weeks (35% of symptomatic versus 40% of asymptomatic HCWs). Four HCWs, healed at 30 April, turned positive within three weeks during controls set up in the work unit. Three-gene positivity had the greatest variability, and increasing CT values from single- to three-gene positivity among all age groups were observed. Conclusions: Self-isolation longer than two weeks and prolonged follow-up periods for the staff returning to work after COVID-19 could be the most suitable choices to counter the SARS-CoV-2 spread. Further studies are needed to investigate infectiousness profiles among positive individuals.

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.

The relevance of dietetic approach of Ayurveda from the perspective of COVID-19 pandemic

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 748-752
Author(s):  
Swapnali Khabade ◽  
Bharat Rathi ◽  
Renu Rathi
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Healthy Person ◽  
World Health ◽  
Physical And Mental Health ◽  
Leading Role ◽  
Global Pandemic ◽  
The People ◽  
The World ◽  
Health Organization ◽  
The Individual

A novel, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causes severe acute respiratory syndrome and spread globally from Wuhan, China. In March 2020 the World Health Organization declared the SARS-Cov-2 virus as a COVID- 19, a global pandemic. This pandemic happened to be followed by some restrictions, and specially lockdown playing the leading role for the people to get disassociated with their personal and social schedules. And now the food is the most necessary thing to take care of. It seems the new challenge for the individual is self-isolation to maintain themselves on the health basis and fight against the pandemic situation by boosting their immunity. Food organised by proper diet may maintain the physical and mental health of the individual. Ayurveda aims to promote and preserve the health, strength and the longevity of the healthy person and to cure the disease by properly channelling with and without Ahara. In Ayurveda, diet (Ahara) is considered as one of the critical pillars of life, and Langhana plays an important role too. This article will review the relevance of dietetic approach described in Ayurveda with and without food (Asthavidhi visheshaytana & Lanhgan) during COVID-19 like a pandemic.

The Unparalleled Growth of COVID-19 Publications (Preprint)

2020 ◽  
Author(s):  
Paul Fontelo ◽  
Mrigendra Bastola ◽  
Craig Locatis ◽  
Fang Liu
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Evidence Base ◽  
Research Papers ◽  
Global Pandemic ◽  
The Us ◽  
International Collaborative ◽  
Number Of Publications ◽  
Collaborative Publishing

UNSTRUCTURED The global pandemic of COVID-19 has generated an unprecedented number of research papers from clinicians and scientists worldwide. We searched PubMed for articles on coronaviruses from 1970 to June 2020. Surges of publications occurred in 2003 from SARS and, again in 2012 from MERS. Although the name COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was only announced by WHO in February 2020, the number of publications has already exceeded 16000 by June this year. China and the US lead in publications, but a significant number also come from countries hardest hit by the illness. International collaborative publishing is significant. Since these publications are generally free to access worldwide, it provides a rich evidence base for clinicians and scientists combatting the COVID-19 pandemic.

scholarly journals SARS-CoV-2 Seroprevalence among Healthcare Workers in General Hospitals and Clinics in Japan

2021 ◽  
Vol 18 (7) ◽  
pp. 3786
Author(s):  
Tatsuya Yoshihara ◽  
Kazuya Ito ◽  
Masayoshi Zaitsu ◽  
Eunhee Chung ◽  
Izumi Aoyagi ◽  
...  
Keyword(s):  
Public Health ◽  
Social Support ◽  
General Population ◽  
Severe Acute Respiratory Syndrome ◽  
Immunoglobulin G ◽  
Health Problem ◽  
Healthcare Workers ◽  
Public Health Problem ◽  
General Hospitals ◽  
Second Wave

Coronavirus disease 2019 (COVID-19) has become a serious public health problem worldwide. In general, healthcare workers are considered to be at higher risk of COVID-19 infection. However, the prevalence of COVID-19 among healthcare workers in Japan is not well characterized. In this study, we aimed to examine the seroprevalence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) antibodies among 2160 healthcare workers in hospitals and clinics that are not designated to treat COVID-19 patients in Japan. The prevalence of SARS-CoV-2 immunoglobulin G was 1.2% in August and October 2020 (during and after the second wave of the pandemic in Japan), which is relatively higher than that in the general population in Japan (0.03–0.91%). Because of the higher risk of COVID-19 infection, healthcare workers should be the top priority for further social support and vaccination against SARS-CoV-2.

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