How effective are vaccines against Delta Plus variant?

The threat of a third wave has started looming in the country. This time the challenge may be bigger, as cases of Delta Plus variant have been found in four states. ICMR scientists are also gathering more information about the new mutation delta plus variant of the Delta variant of the corona. It is constantly being discussed in the country that how effective is the vaccine against the Delta Plus variant of Corona? Watch the video for more details.