The effectiveness of widely used COVID-19 vaccines against the Delta strain becomes weaker within three months of inoculation, said a study from Oxford University, which also said that two doses of the vaccine provided as much protection as “having had COVID-19 before through natural infection.” The preprint survey, carried out by the University of Oxford and the Office for National Statistics and published Thursday, looked at more than 3 million PCR tests across the UK from a random sample of people as the Delta variant became widespread this year. COVID-19 is the illness caused by the CCP (Chinese Communist Party) virus, known as the coronavirus. “People who had been vaccinated after already being infected with COVID-19 had even more protection than vaccinated individuals who had not had COVID-19 before,” Oxford said in a news release about the study. The researchers noted that while the vaccines made by AstraZeneca and Pfizer showed waning …
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