Today was the last day of term at one of our local schools, and after I did the end of term assembly, one of the teachers asked if I could stick around and meet a class to answer some questions.
I had an hour free, so I did.
It was an 'A level' biology class. A levels are the exams you take at about age 18 here in the UK. You normally take about 3 or 4, so students often specialise in subjects that will lean towards what they will go on to study at university.
The teacher knows me well, and he knew that some of his class were interested in the intersection of faith and science - including pupils from Hindu, Muslim and Christian backgrounds - so he wanted to give them an opportunity to ask some questions.
It's now a very widely established scientific fact that covid infections are not all cleared within weeks of infection.
It's not clear what proportion of people undergo persistent infection, but it's not a trivial number, or a rare occurrence.
We have multiple independent lines of evidence for this, including biopsies, autopsies, viral RNA and proteins found months later, successful virus culture in some cases, and sequencing showing the virus continuing to evolve within the same person over time.
No single study proves it on its own, but together they build a remarkably consistent picture that persistent infection is a genuine feature of SARS-CoV-2.
I've been writing a really long thread on the long covid dopamine study, but it's incredibly long winded and complicated and boring and depressing, and even I'm fed up of it, so here's the five tweet version:
I park my vintage 1970s steel car in the sea for a year, then take it out and wonder why it doesn't work.
I ask a mechanic whether the starter motor is rusty.
He says yes the starter motor is rusty.
Is there anyone in their right mind who would think that the starter motor is the only thing that is rusty?
🚨OH MY WORD. I WARNED FOUR YEARS AGO THAT REPEAT COVID INFECTIONS IN KIDS MIGHT LEAD TO EXACTLY THIS CONDITION.
I said that with Covid affecting blood vessels, immune signalling, inflammation, gut, nutrient absorption, nutrient handling, and calcium recycling processes, we should expect a wave of molar incisor hypomineralisation.
I was very surprised that the problem hadn't made it into the media before now - but I guess the children this is happening to now are the children who were born in 2020. The ones who were infected every year since.
There are some people who would have you believe that vaccines basically all work the same for different infections, and all have the same effect, but that's not true.
Let me explain this as simply as I can:
Some vaccines are like *insurance*.
You are unlikely to get tetanus, but if you do, vaccination can turn a catastrophic outcome into something far less dangerous. It is protection against a *rare but awful event*.
Some vaccines are like a *firebreak*.
The measles vaccine doesn't just protect the person receiving it. When enough people are vaccinated, measles struggles to find new people to infect, so the whole community is protected, including babies and people who cannot be vaccinated.