New mRNA vaccine against SARS CoV2 shows success as its phase III trial interim report says

Phase III trial of the mRNA vaccine being developed by Pfizer and the related venture company turned out that it was effective by 90% without serious side effects. The final report on this vaccine is eagerly waited for soon. 

https://pubmed.ncbi.nlm.nih.gov/32756549/

A previous report from the same lab told the vaccine could induce CD8+ T lymphocyte response. It may promise immunological memory developed with this vaccine.

This virus causes autoimmune reaction or long term complications. Further check up as for any side effects due to this vaccine should be closely observed.

Anyway, it seems they are crossing the important milestone for the victory to this virus.