Please take a look at this useful link.
https://www.the-scientist.com/news-opinion/south-african-sars-cov-2-variant-alarms-scientists-68317
No. just like in flu season the flu virus has a different strain which is not covered by the vaccine and you tend to get flu despite having taken the vacc. Therefore in the case of Covid too as its mutation are pretty fast for vacc to catch on to.
Faiza, please share with the community your knowledge: what is the rate of mutation of coronavirus? How much does this change its antigenic properties? Does the vaccine based on the strain of March 2020 protect from the virus of December 2020? Please provide information, not just opinion.
Please take a look at this useful link.
https://www.the-scientist.com/news-opinion/south-african-sars-cov-2-variant-alarms-scientists-68317
According to my Experience in the COVID 19 Mass Test there is many personal reports of double infection of COVID 19 after period of 3 to 4 month A triple infection in our team are reported in one patient (total staff about 40 persons) So we suggest the virus able to escape from immune system and chance of vaccination may be failed. A detailed of case identification and titer estimation of COVID 19 are needed before induction of Mas vaccination.
Now a day a new outbreaks of new strains may support this finding
Ahmed, are you sure that your cases were really double or triple re-infections, not the virus persistence due to the chronic illness? To be sure that you were dealing with the re-infection you should sequence initial and secondary strain(s) and show that their sequences considerably differ.
The following study indicates that Pfizer COVID-19 vaccine is effective against new SARS-CoV-2 variants.
Preprint Neutralization of N501Y mutant SARS-CoV-2 by BNT162b2 vaccin...
Dear Amar Mohamed Ismail yes, studies showed that at least the BioNTech / Pfizer vaccine also protects against the newly mutated coronavirus variants. Please see these relevant recent links:
https://www.dw.com/en/biontech-pfizer-vaccine-may-protect-against-coronavirus-mutation-study/a-56175107
https://apnews.com/article/pfizer-study-vaccine-coronavirus-strain-3094dd3cc91b4a20780402476cdcb5ae
Scott Hensley, an expert in immunology and molecular biology at the University of Pennsylvania told CNN, "It is likely new variants of coronavirus are not going to have a huge effect on the vaccine response." Please look through the link below:
https://edition.cnn.com/2021/01/06/health/mutations-coronavirus-vaccine-evade/index.html
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