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. 2023 Mar;29(3):658-661.
doi: 10.3201/eid2903.220915.

SARS-CoV-2 Infection in a Hippopotamus, Hanoi, Vietnam

SARS-CoV-2 Infection in a Hippopotamus, Hanoi, Vietnam

Vuong Nghia Bui et al. Emerg Infect Dis. 2023 Mar.

Abstract

While investigating the death of a hippopotamus at a zoo in Hanoi, Vietnam, we isolated SARS-CoV-2 and sequenced the RNA-dependent RNA polymerase gene from different organs. Phylogenetic analysis showed that the SARS-CoV-2 strain was closely related to 3 human SARS-CoV-2 strains in Vietnam.

Keywords: COVID-19; Dao TD; Hanoi; Nguyen GH; Nguyen TH; SARS-CoV-2; Suggested citation for this article: Bui VN; Tran LH; Vietnam; Vietnam. Emerg Infect Dis. 2023 Mar [date cited]. https://doi.org/10.3201/eid2903.220915; Vu TT; et al. SARS-CoV-2 infection in a hippopotamus; hippopotamus; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.

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Figures

Figure
Figure
Maximum-likelihood tree constructed for 600-bp RNA-dependent RNA polymerase gene SARS-CoV-2 nucleotide sequences from a hippopotamus (red circle) and 3 human SARS-CoV-2 strains from COVID-19 patients in Vietnam (red triangles) compared with reference betacoronavirus strains obtained from GenBank. Betacoronavirus lineages are indicated on the right of the figure. Scale bar denotes evolutionary distance. MERS, Middle Eastern respiratory syndrome.

References

    1. World Health Organization. Protocol: real-time RT-PCR assays for the detection of SARS-CoV-2. 2020. [cited 2023 Jan 20]. https://www.who.int/docs/default-source/coronaviruse/real-time-rt-pcr-as...
    1. Killington RA. Stokes A, Hierholzer JC. Virus purification. In: Mahy BWJ, Kangro HO, editors. Virology method manual. New York: Academic Press; 1996. p. 71–89 [cited 2023 Jan 20]. https://www.sciencedirect.com/book/9780124653306/virology-methods-manual
    1. Xiu L, Binder RA, Alarja NA, Kochek K, Coleman KK, Than ST, et al. A RT-PCR assay for the detection of coronaviruses from four genera. J Clin Virol. 2020;128:104391. 10.1016/j.jcv.2020.104391 - DOI - PMC - PubMed
    1. Thompson JD, Higgins DG, Gibson TJ. CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res. 1994;22:4673–80. 10.1093/nar/22.22.4673 - DOI - PMC - PubMed
    1. Kumar S, Stecher G, Li M, Knyaz C, Tamura K. MEGA X: molecular evolutionary genetics analysis across computing platforms. Mol Biol Evol. 2018;35:1547–9. 10.1093/molbev/msy096 - DOI - PMC - PubMed

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