The preprint received a lot of attention from the media, and some public health officials expressed concern about the potential impact of the new strain. However, the study had not yet been peer reviewed, which means that it had not been evaluated by other scientists to ensure that the methods and results were valid.
In May 2022, the study was published in the journal Nature Genetics after undergoing peer review. The peer-reviewed version of the study contained some important changes from the preprint.
* The title was changed to "Increased transmissibility of SARS-CoV-2 variant Omicron BA.2 in Denmark and the United Kingdom." This change reflects the fact that the study focused specifically on the Omicron BA.2 variant of the coronavirus, which was not the dominant strain at the time the preprint was posted.
* The abstract was revised to include more information about the study methods and results. The revised abstract also noted that the study was based on a limited number of samples and that further research was needed to confirm the findings.
* The main text of the study was also revised to include more information about the methods and results. The revised text also included a discussion of the potential implications of the findings for public health.
The peer-reviewed version of the study provides more information and context than the preprint, which makes it more useful for scientists and public health officials who are trying to understand the spread of the coronavirus. The study also underwent a rigorous review process, which helps to ensure that the findings are valid.
Here is a table that summarizes the key differences between the preprint and the peer-reviewed version of the study:
| Feature | Preprint | Peer-reviewed version |
|---|---|---|
| Title | A more contagious strain of coronavirus may have emerged in the UK | Increased transmissibility of SARS-CoV-2 variant Omicron BA.2 in Denmark and the United Kingdom |
| Abstract | Reports a computational analysis of genetic sequences from coronavirus samples collected in the UK and Denmark that suggests a new strain has emerged that is more transmissible than previous strains | Revised to include more information about the study methods and results, and notes that the study is based on a limited number of samples |
| Main text | Includes a detailed discussion of the methods and results, but lacks context and discussion of potential implications | Revised to include more information about the methods and results, and includes a discussion of the potential implications of the findings for public health |
| Peer review status | Not peer reviewed | Peer reviewed |
