Tools & Services

The presented phylogenesis illustrates the evolutionary relationships between individual SARS-CoV-2 isolates during the ongoing COVID-19 pandemic, with particular emphasis on the area of Poland. Our goal is to analyze as many SARS-CoV-2 genomes as possible from people infected in Poland. The map also presents the genomic sequences of the virus from other European countries, and to a lesser extent from other regions of the world, to provide a more complete phylogenetic context. This context is important for understanding how different outbreaks of infection relate to each other and how the virus spreads around the globe.
We emphasize that a direct link between samples seen in a phylogenetic tree does not necessarily imply a direct epidemiological link between them. The sampling and testing of the coronavirus genomes are incomplete and heterogeneous, with new mutations appearing approximately every 2 weeks. For these reasons, prolonged periods in which no new mutations have been identified are not uncommon, making it difficult to infer a direct relationship between infections or the direction of virus transmission solely from the collected phylogenetic information.