Preferential host switching and its relation with Hantavirus diversification in South America.

摘要: In recent years, the notion of co-speciation between Hantavirus species and their hosts was discarded in favour a more likely explanation: preferential host switching. However, relative importance this last process shaping evolutionary history hantaviruses remains uncertain, given present limited knowledge not only virus–host relationships but also pathogen reservoir phylogenies. South America, than 25 hantavirus genotypes were detected; several them act as aetiological agents pulmonary syndrome (HPS). An understanding diversity processes underlying switching is critical since human cases HPS are almost exclusively result human–host interactions. study, we tested if main driving diversification by performing co-phylogenetic analysis viruses primary hosts. We suggest new level amino acid divergence to define virus group. Our results indicate that would be diversification. The historical geographical proximity among rodent emerges an alternative hypothesis tested.