Of course 。 Delta is more contagious and more harmful to humans. The most terrible thing is that there should be no vaccine for Delta. Both the government and the individual should make great effort of protection. This is responsible for life.
The vaccines that have been produced by different manufacturers have been said that they're also effective against the Delta variant. But what's disappointing that I've heard is that they're saying that the antibodies from these vaccines are likely to expire within months.
So that's becoming weakened in the long run and that's why they're going to implement another booster shots.