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New data shows that people given the Moderna vaccine continue to produce antibodies against the dominant delta strain of coronavirus six months after receiving their second dose.
However, the study also highlighted the potential threat of the beta variant, which was first discovered in South Africa. In nearly half of the blood samples examined in the study, the antibodies mobilized by the vaccine were not able to neutralize a laboratory-made beta-strain replica after six months.
The findings come as scientists raise concerns that weakened immunity may partly explain the “massive” infection in vaccinated people in Israel, where health authorities have ramped up a program of enhanced third fists as cases of the delta variant rise.
More than 600,000 Israelis over the age of 60 have received a
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