Has the fast development of new COVID-19 vaccines compromised their safety?
Upon reading the claim in the title of this piece (in a tweet) I was reminded of Robert Stephenson’s problems with public perception when he unveiled the Rocket for the Liverpool and Manchester Railway in 1829. It could reach speeds of over 30...
Comparing polio to COVID-19 is idiotic
We are all capable of moments of idiocy, as doubtless my other half will attest. However, in the home setting, my failings are (usually with good humour) pointed out to me. So, when someone (let’s call them William) wrote on a Facebook post of mine that ‘Comparing polio to covid...
COVID-19 PCR testing – what is it, what are false positives and false negatives, and why do they matter?
SARS-CoV-2 is the virus that causes the disease COVID-19 (see my previous blog post for how we know this). Each particle of the virus is essentially a ball-shaped shell containing a bit of material called RNA (similar...
“No one has taken this fragment of protein, infected someone with it and proved that it causes disease.”
This is a direct quote from a letter sent to me by someone who is not convinced that COVID-19 is caused by the SARS-CoV-2 virus. As a science educator, I rather feel that the scientific community has failed somewhere...
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Dr Mark Levesley
Science Education Writer