COVID-19 vaccine

The Wikipedia article on COVID-19 vaccine has been edited 5,679 times since it was created in 2020, by 899 distinct accounts and IP addresses. That averages about 864 recorded changes a year, or several every day, which puts it among the more actively maintained pages on the encyclopedia.

Within the revisions retrieved for this report, the ten busiest contributors account for about 60% of the changes. Editing that concentrated usually means a small group of regulars is doing the maintenance, which tends to produce consistent wording — and also means the page reflects a narrow set of contributors. In the same window, about 13% of the retrieved revisions came from bot accounts, which handle routine work such as link repair and reference formatting.

Within the retrieved window, 2026 carries the most recorded activity, with 138 changes. 12 of those revisions fall in the last 90 days. The most recent recorded edit was 2 days ago.

Readership is cooling: the last three months of pageviews run about 51% below the preceding period. The clearest peak in that record falls in September 2025. Traffic spikes and editing spikes often line up, but the revision record alone cannot tell you which one caused the other, or whether an outside event drove both.

This report is built from the 500 most recent revisions retrieved from Wikipedia, about 9% of the 5,679 recorded edits. Figures drawn from that window describe the window only, and the report cannot establish why a change was made or whether it was correct. For older revisions, talk-page discussion and full context, follow the source history on Wikipedia.