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Multiple SARS-CoV-2 introductions shaped the early outbreak in Central Eastern Europe: comparing Hungarian data to a worldwide sequence data-matrix


Severe Acute Respiratory Syndrome Coronavirus 2 is the third highly pathogenic human coronavirus in history. Since the emergence in Hubei province, China, during late 2019 the situation evolved to pandemic level. Following China, Europe was the second epicenter of the pandemic.

To better comprehend the detailed founder mechanisms of the epidemic evolution in Central-Eastern Europe, particularly in Hungary, we determined the full-length SARS-CoV-2 genomes from 32 clinical samples collected from laboratory confirmed COVID-19 patients over the first month of disease in Hungary.

We applied a haplotype network analysis on all available complete genomic sequences of SARS-CoV-2 from GISAID database as of the 21th of April, 2020. We performed additional phylogenetic and phylogeographic analyses to achieve the recognition of multiple and parallel introductory events into our region.

Here we present a publicly available network imaging of the worldwide haplotype relations of SARS-CoV-2 sequences and conclude the founder mechanisms of the outbreak in Central-Eastern Europe.

Authors: Gabor Kemenesi, Safia Zeghbib, Balazs Somogyi, Gabor E Toth, Krisztian Banyai, Norbert Solymosi, Peter M Szabo, Istvan Szabo, Adam Balint, Peter Urban, Robert Herczeg, Attila Gyenesei, Agnes Nagy, Csaba I Pereszlenyi, Gergely Babinszky, Gabor Dudas, Gabriella Terhes, Viktor Zoldi, Robert Lovas, Szabolcs Tenczer, Laszlo Kornya, Ferenc Jakab

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