New data showing vaccines still allow transmission of the virus means herd immunity may not be possible Herd immunity “is not a possibility” because the delta variant can spread among vaccinated individuals, according to experts including the director of the Oxford Vaccine Group. In a parliamentary panel on Tuesday, Professor …
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People who have recovered from COVID-19 may lose their immunity to the disease within months, according to research suggesting the virus could re-infect people year after year, like common colds. In the first longitudinal study of its kind, scientists analyzed the immune response of more than 90 patients and healthcare …
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A nationwide antibody study in Spain has found that only 5.2 percent of the country’s population has been exposed to coronavirus, suggesting that herd immunity could be unachievable. The findings marked the conclusion of a three-month study into the prevalence of the virus, which involved testing almost 70,000 people across …
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