Willy Spaan
@wjmspaan.bsky.social
Emeritus professor Virology University Leiden and former chair of the Leiden University Medical Center and Jeroen Bosch Hospital. http://linkedin.com/in/willy-spaan-7baa0211
Prasad can’t be trusted as he has spread so much misinformation
November 29, 2025 at 7:10 PM
Prasad can’t be trusted as he has spread so much misinformation
An excellent summary
August 3, 2025 at 8:38 AM
An excellent summary
There not a single piece of solid scientific evidence that points in the direction of a lab leak
August 3, 2025 at 8:13 AM
There not a single piece of solid scientific evidence that points in the direction of a lab leak
Reposted by Willy Spaan
Found this useful to learn more bsky.app/profile/mooc...
May 31, 2025 at 11:02 PM
Found this useful to learn more bsky.app/profile/mooc...
With all due respect, there is no scientific evidence supporting a lab leak. All available data points toward a natural spillover event. Since the Spanish flu and HIV, this has been the most severe pandemic since 1918.
June 1, 2025 at 8:39 AM
With all due respect, there is no scientific evidence supporting a lab leak. All available data points toward a natural spillover event. Since the Spanish flu and HIV, this has been the most severe pandemic since 1918.
Historically, antigenic shift was tied to influenza, but emerging insights into coronavirus RNA recombination suggest it could also happen in non-segmented viruses.
May 24, 2025 at 3:46 PM
Historically, antigenic shift was tied to influenza, but emerging insights into coronavirus RNA recombination suggest it could also happen in non-segmented viruses.
Or RNA recombination targeting the Spike gene?
May 22, 2025 at 1:32 PM
Or RNA recombination targeting the Spike gene?
Reposted by Willy Spaan
The stupidity and wastefulness of this administration is simply disgusting. This will cost a lot of money to do. 125,000 federal employees have been fired but we have money for this?
Absolute clown show.
www.kgun9.com/news/communi...
Absolute clown show.
www.kgun9.com/news/communi...
Community pushback grows over proposal to replace metric signs on I-19
The U.S. Department of Transportation is proposing to convert the kilometer-based signage along Interstate 19 to the standard U.S. system of miles, drawing criticism from the Green Valley community.
www.kgun9.com
May 22, 2025 at 1:26 PM
The stupidity and wastefulness of this administration is simply disgusting. This will cost a lot of money to do. 125,000 federal employees have been fired but we have money for this?
Absolute clown show.
www.kgun9.com/news/communi...
Absolute clown show.
www.kgun9.com/news/communi...
Reposted by Willy Spaan
While I applaud Europe taking a step to fund bringing scientific excellence to Europe, the ERC’s current success rates at 10% for Europe based scientists is statistically at lottery levels. The total ERC budget should double across the board aiming at doubling funding rates.
May 16, 2025 at 12:55 PM
While I applaud Europe taking a step to fund bringing scientific excellence to Europe, the ERC’s current success rates at 10% for Europe based scientists is statistically at lottery levels. The total ERC budget should double across the board aiming at doubling funding rates.
Excellent analysis. This Executive Order has far-reaching consequences, and I wonder if anyone involved truly understands the extent of its impact. If strictly implemented, it could actually make many people around the world less safe.
May 17, 2025 at 2:23 PM
Excellent analysis. This Executive Order has far-reaching consequences, and I wonder if anyone involved truly understands the extent of its impact. If strictly implemented, it could actually make many people around the world less safe.
Reposted by Willy Spaan
Reposted by Willy Spaan
Reposted by Willy Spaan
An almost equally important impact on prevention of long Covid in children www.pennmedicine.org/news/news-re...
COVID vaccine protected kids from long COVID
Instead of special protection against long COVID, vaccines kept children and adolescents from developing the condition by blocking COVID-19 infections in the first place.
www.pennmedicine.org
May 17, 2025 at 1:13 PM
An almost equally important impact on prevention of long Covid in children www.pennmedicine.org/news/news-re...
Reposted by Willy Spaan
If anyone needs it, here is a twitter thread from 2021 show why RaTG13 absolutely can't be the progenitor of SARS-CoV-2 because you would need to 'undo' all the mutations on RaTG13 that arose since its most recent common ancestor(s) with SC2: rambaut.github.io/twitter/ratg13
twitter
rambaut.github.io
May 14, 2025 at 7:38 AM
If anyone needs it, here is a twitter thread from 2021 show why RaTG13 absolutely can't be the progenitor of SARS-CoV-2 because you would need to 'undo' all the mutations on RaTG13 that arose since its most recent common ancestor(s) with SC2: rambaut.github.io/twitter/ratg13