Severe acute respiratory syndrome coronavirus 2 Alpha and Beta variants became dominant in Finland in spring 2021 but had diminished by summer. We used phylogenetic clustering to identify sources of spreading. We found that outbreaks were mostly seeded by a few introductions, highlighting the importance of surveillance and prevention policies.
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Microbiology (medical)
- Infectious Diseases