Dominic Cummings' claim that he warned "last year" of the Corona virus threat after warning about the discovery of a change recently posted on the Downing Street advisor's blog has been questioned.
During a press conference on Monday at which he denied violating the UK ban rules, Cummings said he wrote in 2019 about the "possible corona virus threat".
"I've been warning of the dangers of pandemics for years," he told reporters.
"Last year I wrote about the potential corona virus threat and the urgent need for planning," added Cummings.
The PA news agency found 15 mentions of the term "pandemic" in Mr Cummings' blog, but cached versions of the website show that only the terms "coronavirus" and "SARS" (severe acute respiratory syndrome) were mentioned in April year.
The site data indicates that a change was made on April 14, the day Mr. Cummings returned to work on Downing Street, and two days after he visited Barnard Castle with his wife and child .
PA could not find any other mention of the terms "coronavirus" or "SARS" on Mr. Cummings' blog or in other articles that he had written on the Internet before 2020.
The work was done in an article dated March 4, 2019 on laboratory errors that "could cause a global pandemic".
The post is primarily a direct quote from an article from the Bulletin of the Atomic Scientists that was published on February 25, 2019.
The article by Lynn Klotz, a senior researcher at the Center for Arms Control and Non-Proliferation, was entitled "Human error in high-biocontainment laboratories: a likely pandemic threat".
In the article, Mr. Klotz refers to a report by the US Government Accountability Office (GAO) about an incident in China in which two researchers were exposed to coronavirus samples and transferred a disease strain in 2004.
This is the only time that Mr. Klotz mentions the corona virus and this section has not been included in Mr. Cummings' original contribution.
In April, Mr. Klotz's section mentioning the coronavirus was added to Mr. Cummings' contribution with just over 100 words, replacing the words "an example".
Mr Cummings does not mention the corona virus himself, but comments on Mr Klotz's article and says it shows "how the supposedly safest organic laboratories have serious safety problems and clearly pose an unacceptable risk of a catastrophic pandemic".