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Article: In vitro

Sobhy, Nader M / Quinonez-Munoz, Angie / Aboubakr, Hamada A / Youssef, Christiana R B / Ojeda-Barría, Gonzalo / Mendoza-Fernández, Jonathan / Goyal, Sagar M

Frontiers in veterinary science

2024 Volume 10, Page(s) 1276031

Abstract: Outbreaks of viral diseases in animals are a cause of concern for animal welfare and economics of animal production. One way to disrupt the cycle of infection is by combating viruses in the environment and prohibiting them from being transmitted to a new ...

Abstract	Outbreaks of viral diseases in animals are a cause of concern for animal welfare and economics of animal production. One way to disrupt the cycle of infection is by combating viruses in the environment and prohibiting them from being transmitted to a new host. Viral contamination of the environment can be reduced using well-tested and efficacious disinfectants. Duplalim is a commercially available disinfectant consisting of 12% glutaraldehyde and 10% quaternary ammonium compounds. We evaluated this disinfectant for its efficacy against several viruses in poultry (
Language	English
Publishing date	2024-01-04
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2834243-4
ISSN	2297-1769
ISSN	2297-1769
DOI	10.3389/fvets.2023.1276031
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: A high-performance polymer composite column for coronavirus nucleic acid purification.

Zarouri, Akli / Barnes, Aaron M T / Aboubakr, Hamada / Thekkudan Novi, Vinni / Dong, Qiuchen / Nelson, Andrew / Goyal, Sagar / Abbas, Abdennour

Scientific reports

2024 Volume 14, Issue 1, Page(s) 1138

Abstract: Here, we report the development of a novel polymer composite (PC) purification column and kit. The performance of the PC columns was compared to conventional silica gel (SG) columns for the purification of nucleic acids from coronaviruses, including SARS- ...

Abstract	Here, we report the development of a novel polymer composite (PC) purification column and kit. The performance of the PC columns was compared to conventional silica gel (SG) columns for the purification of nucleic acids from coronaviruses, including SARS-CoV-2, in 82 clinical samples. The results shows that PC-based purification outperforms silica gel (SG)-based purification by enabling a higher sensitivity (94%), accuracy (97%), and by eliminating false positives (100% specificity). The high specificity is critical for efficient patient triage and resource management during pandemics. Furthermore, PC-based purification exhibits three times higher analytical precision than a commonly used SG-based nucleic acid purification thereby enabling a more accurate quantification of viral loads and higher reproducibility.
MeSH term(s)	Humans ; COVID-19 ; Reproducibility of Results ; Silica Gel ; SARS-CoV-2 ; Nucleic Acids ; Sensitivity and Specificity
Chemical Substances	Silica Gel (60650-90-0) ; Nucleic Acids
Language	English
Publishing date	2024-01-11
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-51671-x
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Article: A High-Performance Polymer Composite Column for Coronavirus Nucleic Acid Purification.

Zarouri, Akli / Barnes, Aaron M T / Aboubakr, Hamada / Novi, Vinni Thekkudan / Dong, Qiuchen / Nelson, Andrew / Goyal, Sagar / Abbas, Abdennour

Research square

2023

Abstract	Here, we report the development of a novel polymer composite (PC) purification column and kit. The performance of the PC columns was compared to conventional silica gel (SG) columns for the purification of nucleic acids from coronaviruses, including SARS-CoV-2, in 82 clinical samples. The results shows that PC-based purification outperforms silica gel (SG)-based purification by enabling a higher sensitivity (94%), accuracy (97%), and by eliminating false positives (100% selectivity). The high selectivity is critical for efficient patient triage and resource management during pandemics. Furthermore, PC-based purification exhibits three times higher analytical precision than a commonly used SG-based nucleic acid purification thereby enabling a more accurate quantification of viral loads and higher reproducibility.
Language	English
Publishing date	2023-08-25
Publishing country	United States
Document type	Preprint
DOI	10.21203/rs.3.rs-3261727/v1
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Article ; Online: Stability of SARS-CoV-2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions: A review.

Aboubakr, Hamada A / Sharafeldin, Tamer A / Goyal, Sagar M

Transboundary and emerging diseases

2020 Volume 68, Issue 2, Page(s) 296–312

Abstract: Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID-19) and its causative aetiology [severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)], the number of confirmed cases has ... ...

Abstract	Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID-19) and its causative aetiology [severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)], the number of confirmed cases has been increasing drastically. Therefore, there is an urgent need for devising more efficient preventive measures, to limit the spread of the infection until an effective treatment or vaccine is available. The preventive measures depend mainly on the understanding of the transmission routes of this virus, its environmental stability, and its persistence on common touch surfaces. Due to the very limited knowledge about SARS-CoV-2, we can speculate its stability in the light of previous studies conducted on other human and animal coronaviruses. In this review, we present the available data on the stability of coronaviruses (CoVs), including SARS-CoV-2, from previous reports to help understand its environmental survival. According to available data, possible airborne transmission of SARS-CoV-2 has been suggested. SARS-CoV-2 and other human and animal CoVs have remarkably short persistence on copper, latex and surfaces with low porosity as compared to other surfaces like stainless steel, plastics, glass and highly porous fabrics. It has also been reported that SARS-CoV-2 is associated with diarrhoea and that it is shed in the faeces of COVID-19 patients. Some CoVs show persistence in human excrement, sewage and waters for a few days. These findings suggest a possible risk of faecal-oral, foodborne and waterborne transmission of SARS-CoV-2 in developing countries that often use sewage-polluted waters in irrigation and have poor water treatment systems. CoVs survive longer in the environment at lower temperatures and lower relative humidity. It has been suggested that large numbers of COVID-19 cases are associated with cold and dry climates in temperate regions of the world and that seasonality of the virus spread is suspected.
MeSH term(s)	Animals ; COVID-19/prevention & control ; COVID-19/virology ; Climate ; Environment ; Global Health ; Humans ; SARS-CoV-2/pathogenicity ; Seasons ; Touch
Keywords	covid19
Language	English
Publishing date	2020-07-14
Publishing country	Germany
Document type	Journal Article ; Review
ZDB-ID	2414822-2
ISSN	1865-1682 ; 1865-1674
ISSN (online)	1865-1682
ISSN	1865-1674
DOI	10.1111/tbed.13707
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Article ; Online: In vitro virucidal activity of a commercial disinfectant against viruses of domestic animals and poultry

Nader M. Sobhy / Angie Quinonez-Munoz / Hamada A. Aboubakr / Christiana R. B. Youssef / Gonzalo Ojeda-Barría / Jonathan Mendoza-Fernández / Sagar M. Goyal

Frontiers in Veterinary Science, Vol

2024 Volume 10

Abstract	Outbreaks of viral diseases in animals are a cause of concern for animal welfare and economics of animal production. One way to disrupt the cycle of infection is by combating viruses in the environment and prohibiting them from being transmitted to a new host. Viral contamination of the environment can be reduced using well-tested and efficacious disinfectants. Duplalim is a commercially available disinfectant consisting of 12% glutaraldehyde and 10% quaternary ammonium compounds. We evaluated this disinfectant for its efficacy against several viruses in poultry (n = 3), pigs (n = 5), dogs (n = 2), and cattle (n = 4). In suspension tests, 1:100 dilution of Duplalim was found to inactivate more than 99% of these 14 viruses in 15 min or less. The titers of a majority of these viruses decreased by ≥99.99% in <60 min of contact time. In conclusion, the ingredient combination in Duplalim is very effective in inactivating common viruses of domestic animals and poultry.
Keywords	Duplalim ; disinfection ; virus ; inactivation ; suspension test ; Veterinary medicine ; SF600-1100
Subject code	630
Language	English
Publishing date	2024-01-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Stability of SARS‐CoV‐2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions: A review

Aboubakr, Hamada A / Sharafeldin, Tamer A / Goyal, Sagar M

Transboundary and emerging diseases. 2021 Mar., v. 68, no. 2

2021

Abstract: Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID‐19) and its causative aetiology [severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2)], the number of confirmed cases has ... ...

Abstract	Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID‐19) and its causative aetiology [severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2)], the number of confirmed cases has been increasing drastically. Therefore, there is an urgent need for devising more efficient preventive measures, to limit the spread of the infection until an effective treatment or vaccine is available. The preventive measures depend mainly on the understanding of the transmission routes of this virus, its environmental stability, and its persistence on common touch surfaces. Due to the very limited knowledge about SARS‐CoV‐2, we can speculate its stability in the light of previous studies conducted on other human and animal coronaviruses. In this review, we present the available data on the stability of coronaviruses (CoVs), including SARS‐CoV‐2, from previous reports to help understand its environmental survival. According to available data, possible airborne transmission of SARS‐CoV‐2 has been suggested. SARS‐CoV‐2 and other human and animal CoVs have remarkably short persistence on copper, latex and surfaces with low porosity as compared to other surfaces like stainless steel, plastics, glass and highly porous fabrics. It has also been reported that SARS‐CoV‐2 is associated with diarrhoea and that it is shed in the faeces of COVID‐19 patients. Some CoVs show persistence in human excrement, sewage and waters for a few days. These findings suggest a possible risk of faecal–oral, foodborne and waterborne transmission of SARS‐CoV‐2 in developing countries that often use sewage‐polluted waters in irrigation and have poor water treatment systems. CoVs survive longer in the environment at lower temperatures and lower relative humidity. It has been suggested that large numbers of COVID‐19 cases are associated with cold and dry climates in temperate regions of the world and that seasonality of the virus spread is suspected.
Keywords	COVID-19 infection ; Severe acute respiratory syndrome coronavirus 2 ; airborne transmission ; cold ; copper ; diarrhea ; etiology ; feces ; glass ; humans ; irrigation ; latex ; porosity ; relative humidity ; risk ; sewage ; stainless steel ; vaccines ; viruses ; water treatment
Language	English
Dates of publication	2021-03
Size	p. 296-312.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	NAL-AP-2-clean ; REVIEW
ZDB-ID	2414822-2
ISSN	1865-1682 ; 1865-1674
ISSN (online)	1865-1682
ISSN	1865-1674
DOI	10.1111/tbed.13707
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Comparison of samplers collecting airborne influenza viruses: 1. Primarily impingers and cyclones.

Raynor, Peter C / Adesina, Adepeju / Aboubakr, Hamada A / Yang, My / Torremorell, Montserrat / Goyal, Sagar M

PloS one

2021 Volume 16, Issue 1, Page(s) e0244977

Abstract: Researchers must be able to measure concentrations, sizes, and infectivity of virus-containing particles in animal agriculture facilities to know how far infectious virus-containing particles may travel through air, where they may deposit in the human or ...

Abstract	Researchers must be able to measure concentrations, sizes, and infectivity of virus-containing particles in animal agriculture facilities to know how far infectious virus-containing particles may travel through air, where they may deposit in the human or animal respiratory tract, and the most effective ways to limit exposures to them. The objective of this study was to evaluate a variety of impinger and cyclone aerosol or bioaerosol samplers to determine approaches most suitable for detecting and measuring concentrations of virus-containing particles in air. Six impinger/cyclone air samplers, a filter-based sampler, and a cascade impactor were used in separate tests to collect artificially generated aerosols of MS2 bacteriophage and swine and avian influenza viruses. Quantification of infectious MS2 coliphage was carried out using a double agar layer procedure. The influenza viruses were titrated in cell cultures to determine quantities of infectious virus. Viral RNA was extracted and used for quantitative real time RT-PCR, to provide total virus concentrations for all three viruses. The amounts of virus recovered and the measured airborne virus concentrations were calculated and compared among the samplers. Not surprisingly, high flow rate samplers generally collected greater quantities of virus than low flow samplers. However, low flow rate samplers generally measured higher, and likely more accurate, airborne concentrations of Infectious virus and viral RNA than high flow samplers. To assess airborne viruses in the field, a two-sampler approach may work well. A suitable high flow sampler may provide low limits of detection to determine if any virus is present in the air. If virus is detected, a suitable lower flow sampler may measure airborne virus concentrations accurately.
MeSH term(s)	Aerosols/analysis ; Agriculture ; Air Microbiology ; Animals ; Environmental Monitoring/instrumentation ; Orthomyxoviridae/isolation & purification ; Particle Size ; RNA, Viral
Chemical Substances	Aerosols ; RNA, Viral
Language	English
Publishing date	2021-01-28
Publishing country	United States
Document type	Comparative Study ; Journal Article ; Research Support, U.S. Gov't, P.H.S.
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0244977
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Article ; Online: Stability of SARS‐CoV‐2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions

Aboubakr, Hamada A. / Sharafeldin, Tamer A. / Goyal, Sagar M.

Transboundary and Emerging Diseases ; ISSN 1865-1674 1865-1682

A review

2020

Keywords	General Immunology and Microbiology ; General Veterinary ; General Medicine ; covid19
Language	English
Publisher	Wiley
Publishing country	us
Document type	Article ; Online
DOI	10.1111/tbed.13707
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Stability of SARS-CoV-2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions: A review

Aboubakr, Hamada A / Sharafeldin, Tamer A / Goyal, Sagar M

Transbound. emerg. dis. (Internet)

Abstract	Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID-19) and its causative aetiology [severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)], the number of confirmed cases has been increasing drastically. Therefore, there is an urgent need for devising more efficient preventive measures, to limit the spread of the infection until an effective treatment or vaccine is available. The preventive measures depend mainly on the understanding of the transmission routes of this virus, its environmental stability, and its persistence on common touch surfaces. Due to the very limited knowledge about SARS-CoV-2, we can speculate its stability in the light of previous studies conducted on other human and animal coronaviruses. In this review, we present the available data on the stability of coronaviruses (CoVs), including SARS-CoV-2, from previous reports to help understand its environmental survival. According to available data, possible airborne transmission of SARS-CoV-2 has been suggested. SARS-CoV-2 and other human and animal CoVs have remarkably short persistence on copper, latex and surfaces with low porosity as compared to other surfaces like stainless steel, plastics, glass and highly porous fabrics. It has also been reported that SARS-CoV-2 is associated with diarrhoea and that it is shed in the faeces of COVID-19 patients. Some CoVs show persistence in human excrement, sewage and waters for a few days. These findings suggest a possible risk of faecal-oral, foodborne and waterborne transmission of SARS-CoV-2 in developing countries that often use sewage-polluted waters in irrigation and have poor water treatment systems. CoVs survive longer in the environment at lower temperatures and lower relative humidity. It has been suggested that large numbers of COVID-19 cases are associated with cold and dry climates in temperate regions of the world and that seasonality of the virus spread is suspected.
Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #628257
Database	COVID19

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Book ; Online: Stability of SARS-CoV2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions

Aboubakr, Hamada / Sharafeldin, Tamer A / Goyal, Sagar M.

a review

2020

Abstract: Although the unprecedented efforts the world has been taking to control the spread of the humancoronavirus disease (COVID-19) and its causative etiology [Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2)], the number of confirmed cases has ... ...

Abstract	Although the unprecedented efforts the world has been taking to control the spread of the humancoronavirus disease (COVID-19) and its causative etiology [Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2)], the number of confirmed cases has been increasing drastically.Therefore, there is an urgent need for devising more efficient preventive measures, to limit the spreadof the infection until an effective treatment or vaccine is available. The preventive measures dependmainly on the understanding of the transmission routes of this virus, its environmental stability, andits persistence on common touch surfaces. Due to the very limited knowledge about SARS-CoV-2,we can speculate its stability in the light of previous studies conducted on other human and animalcoronaviruses. In this review, we present the available data on the stability of coronaviruses (CoVs),including SARS-CoV-2, from previous reports to help understand its environmental survival.According to available data, possible airborne transmission of SARS-CoV-2 has been suggested.SARS-CoV-2 and other human and animal CoVs have remarkably short persistence on copper, latex,and surfaces with low porosity as compared to other surfaces like stainless steel, plastics, glass, andhighly porous fabrics. It has also been reported that SARS-CoV-2 is associated with diarrhea and thatit is shed in the feces of COVID-19 patients. Some CoVs show persistence in human excrement,sewage, and waters for a few days. These findings suggest a possible risk of fecal-oral, foodborne,and waterborne transmission of SARS-CoV-2 in developing countries that often use sewage-pollutedwaters in irrigation and have poor water treatment systems. CoVs survive longer in the environment atlower temperatures and lower relative humidity. It has been suggested that large numbers of COVID-19 cases are associated with cold and dry climates in temperate regions of the world and thatseasonality of the virus spread is suspected.
Keywords	covid19
Publisher	Center for Open Science
Publishing country	us
Document type	Book ; Online
DOI	10.31219/osf.io/y2rth
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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