Have a look at this useful link.

https://www.livescience.com/pfizer-vaccine-effective-new-mutation-coronavirus.html

I think not

Dear all, the new 'strain' is the results of mutations that didn't touched the essential components (targets) where the vaccines act. So, they are still active. This is what I heared in the media from experts. My Regards

Have a look at this useful link.

https://www.livescience.com/pfizer-vaccine-effective-new-mutation-coronavirus.html

Public Health England said there was currently no evidence to suggest COVID-19 vaccines would not protect against the mutated virus variants

Available data regarding new strains suggests that mutations occur at sites other than the target genes of vaccines so vaccines will be effective against these new variants of virus.

The changes in the variants are not sufficient to make the vaccine ineffective, since it stimulates our immune system to produce a wide range of protective antibodies. “There is no evidence to suggest that the current vaccines will fail to protect against COVID-19 variants reported from the UK and South Africa.” https://weather.com/en-IN/india/coronavirus/news/2021-01-06-vaccines-not-100-effective-on-south-africa-coronavirus-variant

Because people usually make more than one type of antibody against a virus, experts say it's unlikely such a mutation would render the virus completely resistant to a vaccine. However, experts aren't so sure the new strains will have no impact at all. https://edition.cnn.com/2021/01/08/health/pfizer-vaccine-variant-strain-mutation/index.html

The Covid-19 vaccine from Pfizer and BioNTech appears to protect against viruses carrying at least one of the key mutations found in two coronavirus variants that are causing rapid spread across the UK, according to a study. https://www.theguardian.com/world/2021/jan/08/pfizer-vaccine-protects-against-new-covid-variants-study-suggests