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He further said that they can even cause re-infections in people who have developed antibodies. Also, he added that herd immunity is a myth because at least 80% of the population needs to have developed antibodies.
Guleria stressed that after the vaccine people might not be able to avoid getting the disease, but they will have a mild version of it. However, he underscored that getting the vaccine is a must.
Maharashtra, Kerala, Madhya Pradesh, Punjab, and Chattisgarh are seeing a spike in Covid-19 cases