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  • 1.
    Gia Phan, Tung
    et al.
    Blood Syst Research Institute, CA 94118 USA; University of Calif San Francisco, CA 94118 USA.
    Charlys da Costa, Antonio
    Blood Syst Research Institute, CA 94118 USA; University of Sao Paulo, Brazil.
    del Valle Mendoza, Juana
    University of Peruana Ciencias Aplicadas UPC, Peru.
    Bucardo-Rivera, Filemon
    Institute Invest Nutr, Peru; University of Leon, Nicaragua.
    Nordgren, Johan
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    ORyan, Miguel
    University of Chile, Chile.
    Deng, Xutao
    Blood Syst Research Institute, CA 94118 USA.
    Delwart, Eric
    Blood Syst Research Institute, CA 94118 USA; University of Calif San Francisco, CA 94118 USA.
    The fecal virome of South and Central American children with diarrhea includes small circular DNA viral genomes of unknown origin2016In: Archives of Virology, ISSN 0304-8608, E-ISSN 1432-8798, Vol. 161, no 4, p. 959-966Article in journal (Refereed)
    Abstract [en]

    Viral metagenomics of feces collected from 58 Peruvian children with unexplained diarrhea revealed several small circular ssDNA genomes. Two genomes related to sequences previously reported in feces from chimpanzees and other mammals and recently named smacoviruses were characterized and then detected by PCR in 1.7 % (1/58) and 19 % (11/58) of diarrheal samples, respectively. Another three genomes from a distinct small circular ssDNA viral group provisionally called pecoviruses encoded Cap and Rep proteins with < 35 % identity to those in related genomes reported in human, seal, porcine and dromedary feces. Pecovirus DNA was detected in 15.5 % (9/58), 5.9 % (3/51) and 3 % (3/100) of fecal samples from unexplained diarrhea in Peru, Nicaragua and Chile, respectively. Feces containing these ssDNA genomes also contained known human enteric viral pathogens. The cellular origins of these circular ssDNA viruses, whether human cells, ingested plants, animals or fungal foods, or residents of the gut microbiome, are currently unknown.

  • 2.
    Istrate, Claudia
    et al.
    University of Nova Lisboa, Portugal.
    Sharma, Sumit
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Health Sciences.
    Nordgren, Johan
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Health Sciences.
    Videira e Castro, Sandra
    University of Nova Lisboa, Portugal.
    Lopes, Angela
    University of Nova Lisboa, Portugal.
    Piedade, Joao
    University of Nova Lisboa, Portugal.
    Zaky, Ahmed
    Institute Marques de Valle Flor, Portugal.
    Lima, Antonio
    Institute Marques de Valle Flor, Sao Tome and Prin; Minist Saude, Sao Tome and Prin.
    Neves, Edgar
    Institute Marques de Valle Flor, Sao Tome and Prin.
    Veiga, Jose
    Institute Marques de Valle Flor, Sao Tome and Prin; Minist Saude, Sao Tome and Prin.
    Esteves, Aida
    University of Nova Lisboa, Portugal.
    High rate of detection of G8P[6] rotavirus in children with acute gastroenteritis in So Tom, and Principe2015In: Archives of Virology, ISSN 0304-8608, E-ISSN 1432-8798, Vol. 160, no 2, p. 423-428Article in journal (Refereed)
    Abstract [en]

    The burden of rotavirus infections greatly affects the low-income African countries. In the absence of epidemiological data on pediatric diarrhea in So Tom, and Principe (STP), a study was conducted from August to December 2011. Rotavirus antigen was detected in 36.7 % of the collected fecal samples (87/237). G8P[6] was identified as the predominant genotype (71.1 % detection rate), while G1P[8] represented only 8.4 %. Phylogenetic analysis of VP7 G8 strains showed clustering within lineage G8d, while VP4 P[6] strains clustered within lineage 1a. Our results represent the first report on rotavirus from STP and show one of the highest detection rates of G8 rotaviruses worldwide.

  • 3.
    Jonsson, Nina
    et al.
    Linnaeus University, Sweden .
    Wahlström, Kristin
    Linköping University, Department of Clinical and Experimental Medicine, Clinical Microbiology. Linköping University, Faculty of Health Sciences.
    Svensson, Lennart
    Linköping University, Department of Clinical and Experimental Medicine, Molecular Virology. Linköping University, Faculty of Health Sciences.
    Serrander, Lena
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Lindberg, A. Michael
    Linnaeus University, Sweden .
    Aichi virus infection in elderly people in Sweden2012In: Archives of Virology, ISSN 0304-8608, E-ISSN 1432-8798, Vol. 157, no 7, p. 1365-1369Article in journal (Refereed)
    Abstract [en]

    Aichi virus (AiV), genus Kobuvirus, family Picornaviridae, is associated with gastroenteritis in humans. Previous studies have shown high seroprevalence but low incidence (0.9-4.1%) in clinical samples. We report here the first detection of AiV in Sweden. Two hundred twenty-one specimens from hospitalized patients with diarrhea, who were negative for other enteric viruses, were included in the study. AiV were detected in three specimens, all from elderly patients. Phylogenetic analysis revealed that the three Swedish isolates belonged to genotype A and were genetically closest to European and Asian strains of AiV.

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