Absolutely people must worried about the another variant cause we are not done yet by the Covid-19 Virus and we are not 100% has a cure ,cause Vaccine is not really the cure it's just a preventive medical so we can not affected or get virus but it's sad news that we heard that some die because of The Vaccine's cause their body can't accept the strong dosage. Hoping this two Variants will desappear so that we can live normal life 
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.I just read yesterday that vaccinated doesn't protect anymore against the delta variant. The Pfizer Biontech vaccine had the highest immunity with 95%, but after tests in Israel where a large part of the population was vaccinated with Pfizer, the immunity dropped down to 65%. This is very scary, because we had so many variants already. With the next mutation the immunity could drop down to 30%.