[quote Beachcomber]@leafyygreens
You seem to have me confused with another poster.
Anyway, thanks for replying. I'm not sure if you intended the following in reply to my question on Dr Vanden Bossche's theory on how mass vaccination could impact the evolution of the pandemic but it doesn't answer my question. So I'm still in the dark as to why you think his theory is wrong.
A virus can only mutate when it is replicating. It can only replicate when it is within a host. Vaccines (imperfect as they are) reduce the number of infections, and the time it takes to clear the viral particles in individuals, thus reducing the number of chances the virus has to mutate. Vaccines therefore reduce the likelihood of new variants emerging, they don't increase them.
As I understand it, Dr Vanden Bossche's theory is that non sterilizing vaccines being used in a pandemic situation will give a competitive advantage to vaccine resistant mutants. That is that vaccines which do not prevent infection and transmission have an impact on the natural selection of the mutations which will emerge as successful.
I understand what you are saying about vaccines reducing the number and length of infections and thereby the opportunity for a virus to replicate and therefore mutate. But that does not address his theory - his theory is not so much about the opportunity for mutation but more about the success of a mutation once it has occurred (that mutations occur despite vaccination is a given).
I have clearly stated that I do not know if I agree with this theory and that I would like it to be wrong so I'm hardly "clinging onto" it / him / anyone who agrees with him.
I would like it to be wrong because I would like the covid pandemic to be over and I hoped that vaccines would play a huge role in making that happen. But I am concerned that if Omicron is vaccine resistant that gives weight to Vanden Bossche's theory and that worries me.
Which is why I am really interested in why you think that he is so wrong. But unfortunately you haven't addressed his theory.[/quote]
@Beachcomber
I'll try again - no I really don't have you confused with someone else.
Viruses, particularly coronaviruses, have a relatively high mutatation rate. There is evolutionary drive to escape the immunity of the host organism, be that that immunity from a previous infection or from vaccinations.
In a situation with no-one vaccinated (as Van Bossche wants), the virus will rip through populations, with mutations that confer an advantage to escaping prior immunity favoured. New variants will emerge at a high rate, which indeed we saw prior to vaccines being introduced.
The only way to slow this process down, and reduce the risk of new variants, is to improve the level of immunity people have, in order to prevent new infections and help individuals clear those that they do have faster. This is done via vaccination.
Mutations allowing a selective advantage will occur with or without vaccination, however vaccination reduces this process, whilst also reducing overwhelmed healthcare, severe illness, and deaths. It is ridiculous to argue otherwise, as Van Bossche does.
His solution is that we shouldn't vaccinate anyone and that the current "killer vaccines" that will "doom humanity" should be replaced by his own super vaccine. Unfortunately, it doesn't exist and he hasn't started developing it, because he is not a research scientist who has this kind of expertise and hasn't been able to convince anyone else it is viable.
As I said, there is a reason he hasn't published anything since 1995.