Kerttu Majander

Microbial community dynamics in a traditional Swiss mountain cheese over 142 years of cheesemaking

This study analyzes microbial community changes in traditional Swiss cheese over 142 years, showing shifts linked to production practices and antibiotic use.

Exploring the Evolution of the Cariogenic Oral Pathobiont Streptococcus mutans Using Ancient DNA

This study uses ancient DNA to analyze the evolution of Streptococcus mutans over 8,000 years, showing that some virulence traits emerged with agricultural diets.

Ancient bacterial genomes reveal a formerly unknown diversity of Treponema pallidum strains in early modern Europe

This study identifies previously unknown Treponema pallidum strains in early modern Europe, suggesting a complex history of treponemal diseases.

Ancient Fennoscandian genomes reveal origin and spread of Siberian ancestry in Europe

The paper analyzes ancient genomes from Finland and Northwest Russia to show Siberian ancestry in northern Europe dates back 3,500 years and influenced modern Uralic-speaking populations.