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Emerging Infectious Diseases (1)
Journal of Clinical Microbiology (1)
Deijl, Hanneke (1)
Hedlund, Kjell-Olof (1)
Koopmans, Marion P. G. (1)
Kramps, Johannes A. (1)
Lewis, David (1)
Lina, Peter H.C. (1)
Svensson, Lennart (1)
Takumi, Katsuhisa (1)
Van der Heide, Reina (1)
Van der Poel, Wim H.M. (1)
Verstraten, Elisabeth R.A.M. (1)
Vinjé, Jan (1)
van der Heide, Reina (1)
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European Bat Lyssaviruses, the Netherlands
Van der Poel, Wim H.M.
Verstraten, Elisabeth R.A.M.
Lina, Peter H.C.
Kramps, Johannes A.
Emerging Infectious Diseases
Genotype 5 lyssaviruses are endemic in the Netherlands, and can cause fatal infections in humans.
To study European bat lyssavirus (EBLV) in bat reservoirs in the Netherlands, native bats have been tested for rabies since 1984. For all collected bats, data including species, age, sex, and date and location found were recorded. A total of 1,219 serotine bats, Eptesicus serotinus, were tested, and 251 (21%) were positive for lyssavirus antigen. Five (4%) of 129 specimens from the pond bat, Myotis dasycneme, were positive. Recently detected EBLV RNA segments encoding the nucleoprotein were sequenced and analyzed phylogenetically (45 specimens). All recent serotine bat specimens clustered with genotype 5 (EBLV1) sequences, and homologies within subgenotypes EBLV1a and EBLV1b were 99.0%–100% and 99.2%–100%, respectively. Our findings indicate that EBLVs of genotype 5 are endemic in the serotine bat in the Netherlands. Since EBLVs can cause fatal infections in humans, all serotine and pond bats involved in contact incidents should be tested to determine whether the victim was exposed to EBLVs.
EBLV; lyssavirus; the Netherlands; bat; Eptesicus serotinus; Myotis dasycneme; Europe; research
Molecular Detection and Epidemiology of Sapporo-Like Viruses
Koopmans, Marion P. G.
Journal of Clinical Microbiology
Sapporo-like viruses (SLVs) are associated with acute gastroenteritis in humans. Due to a limited supply of available reagents for diagnosis, little is known about the incidence and pathogenicity of these viruses. We have developed a first-generation generic reverse transcriptase (RT) PCR assay based on a single primer pair targeting the RNA polymerase gene. With this assay, 55 (93%) of the 59 stool specimens collected in a 10-year period of time (1988 to 1998) and containing typical caliciviruses by electron microscopy tested positive and could be confirmed by Southern hybridization. By phylogenetic analysis, most SLV strains could be classified into one of the three recently described genotypes. However, three samples clustered separately, forming a potential new genotype. We sequenced the complete capsid gene of one of the strains in this cluster: Hu/SLV/Stockholm/97/SE. Alignment of the capsid sequences showed 40 to 74% amino acid identity among strains of the different clusters. Phylogenetic analysis of the aligned sequences confirmed the placing of Hu/SLV/Stockholm/97/SE into a new distinct genetic cluster. This is the first report on the development of a broadly reactive RT-PCR assay for the detection of SLVs.
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