Johnson & Johnson has said that second dose of its Covid-19 vaccine boosts immunity against the disease.
According to two clinical studies that are yet to be peer-reviewed, a nine-fold increase in antibodies to the coronavirus was evoked by the additional shot.
Plans for all Americans vaccinated with mRNA vaccines -- Pfizer and Moderna -- to receive a third dose eight months after the second in the series were announced by President Joe Biden's administration.
According to the Centers for Disease Control and Prevention (CDC), before making a firm recommendation for the J&J vaccine, more data is required.
Although Johnson & Johnson's news release did not specify when the second dose was taken, information regarding the trials on government websites shows the company was testing multiple intervals, beginning at six months.
Just recently, the CDC announced the decline in the effectiveness of Covid-19 vaccines overall following the dominance of the hyper-contagious Delta variant.
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