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  1. Article: Dynamic and Seasonal Distribution of Enteric Viruses in Surface and Well Water in Riyadh (Saudi Arabia).

    Abid, Islem / Blanco, Albert / Al-Otaibi, Nawal / Guix, Susana / Costafreda, Maria I / Pintó, Rosa M / Bosch, Albert

    Pathogens (Basel, Switzerland)

    2023  Volume 12, Issue 12

    Abstract: Enteric viruses are the major cause of gastroenteritis and enteric hepatitis worldwide, but in some areas like Saudi Arabia, little is known about their presence in water sources. The available information from clinical samples is not enough to figure ... ...

    Abstract Enteric viruses are the major cause of gastroenteritis and enteric hepatitis worldwide, but in some areas like Saudi Arabia, little is known about their presence in water sources. The available information from clinical samples is not enough to figure out their actual prevalence. The aim of this study was to gather information for the first time in Saudi Arabia on the presence of the Norovirus (NoV) genogroup GI and GII, hepatitis A virus (HAV), and hepatitis E virus (HEV) in water. For this purpose, thirteen monthly samples were collected from Lake Wadi Hanifa and surrounding wells from December 2014 to November 2015. Viruses were detected and quantified using real-time RT-qPCR. Despite HEV findings being anecdotic, our results highlight interesting behaviors of the other viruses. There was a higher prevalence of noroviruses in Wadi Hanifa samples than in well water samples (46.43% vs. 12.5% of NoV GI; 66.67% vs. 8.33% of NoV GII). On the contrary, similar levels of HAV positivity were observed (40.48% in surface water vs. 43.06% in well water). Also, a strong influence of flooding events on HAV and NoV GI occurrence was observed in both surface and well water samples, with NoV GII apparently not affected.
    Language English
    Publishing date 2023-11-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2695572-6
    ISSN 2076-0817
    ISSN 2076-0817
    DOI 10.3390/pathogens12121405
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effect of Hepatitis E Virus RNA Universal Blood Donor Screening, Catalonia, Spain, 2017‒2020.

    Bes, Marta / Costafreda, Maria I / Riveiro-Barciela, Mar / Piron, Maria / Rico, Angie / Quer, Josep / Puig, Lluis / Sauleda, Silvia

    Emerging infectious diseases

    2022  Volume 28, Issue 1, Page(s) 157–165

    Abstract: Hepatitis E virus (HEV) is the major cause of acute viral hepatitis in several countries in Europe. HEV is acquired mainly by consumption of contaminated pork but can also be transmitted through blood transfusion. HEV infection is usually self-limited ... ...

    Abstract Hepatitis E virus (HEV) is the major cause of acute viral hepatitis in several countries in Europe. HEV is acquired mainly by consumption of contaminated pork but can also be transmitted through blood transfusion. HEV infection is usually self-limited but can become persistent in immunocompromised persons. During the first 30 months of HEV RNA universal screening of blood donations in Catalonia, Spain, we identified 151 HEV RNA-positive donations (1/4,341 blood donations). Most infected donors reported consumption of pates and sausages, and 58% were negative for HEV IgM and IgG. All HEV isolates belonged to genotype 3. All infected donors spontaneously resolved the infection, and no neurologic symptoms and reinfections were observed after 1 year of follow-up. Since the implementation of HEV RNA universal screening, no new cases of transfusion-transmitted HEV infection were reported. Our data indicate HEV screening of blood donations provides safer blood for all recipients, especially for immunosuppressed persons.
    MeSH term(s) Blood Donors ; Donor Selection ; Hepatitis Antibodies ; Hepatitis E/diagnosis ; Hepatitis E/epidemiology ; Hepatitis E virus/genetics ; Humans ; RNA, Viral ; Seroepidemiologic Studies ; Spain/epidemiology
    Chemical Substances Hepatitis Antibodies ; RNA, Viral
    Language English
    Publishing date 2022-02-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1380686-5
    ISSN 1080-6059 ; 1080-6040
    ISSN (online) 1080-6059
    ISSN 1080-6040
    DOI 10.3201/eid2801.211466
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Specific Plasma MicroRNA Signatures Underlying the Clinical Outcomes of Hepatitis E Virus Infection.

    Costafreda, Maria I / Sauleda, Silvia / Riveiro-Barciela, Mar / Rico, Angie / Llorens-Revull, Meritxell / Guix, Susana / Pintó, Rosa M / Bosch, Albert / Rodríguez-Frías, Francisco / Rando, Ariadna / Piron, Maria / Bes, Marta

    Microbiology spectrum

    2023  Volume 11, Issue 1, Page(s) e0466422

    Abstract: The pathogenic mechanisms determining the diverse clinical outcomes of HEV infection (e.g., self-limiting versus chronic or symptomatic versus asymptomatic) are not yet understood. Because specific microRNA signatures during viral infection inform the ... ...

    Abstract The pathogenic mechanisms determining the diverse clinical outcomes of HEV infection (e.g., self-limiting versus chronic or symptomatic versus asymptomatic) are not yet understood. Because specific microRNA signatures during viral infection inform the cellular processes involved in virus replication and pathogenesis, we investigated plasma microRNA profiles in 44 subjects, including patients with symptomatic acute (AHE,
    MeSH term(s) Humans ; Hepatitis E/diagnosis ; Hepatitis E virus/genetics ; MicroRNAs/genetics ; Immunoglobulin G ; Immunoglobulin M ; Antiviral Agents
    Chemical Substances MicroRNAs ; Immunoglobulin G ; Immunoglobulin M ; Antiviral Agents
    Language English
    Publishing date 2023-01-25
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.04664-22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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