his blog/website states that he knew that there was going to be a pandemic , he wrote about this last yr , but did he
no he altered (edited) the blog this yr
The internet archive Wayback Machine, which tracks the changing versions of publicly available websites, shows that the blog was edited some time between 9 April and 3 May this year (after the pandemic started) to insert the reference to coronavirus and Chinese labs. This was first pointed out by a data scientist Jens Wiechers on social media, and can be seen here.
It is in the form of a new quote from an article already linked to in the Bulletin of Atomic Scientists. It was not in the original blog.
And the sitemap of Mr Cumming's blog corroborates this, showing that this post was indeed edited at 20:55:20 on the evening of 14 April this year, still available here. This happens to be the day Mr Cummings returned to work from his Durham trip.
all links are on BBC website