COVID-9 spike: WHO recommends additional booster shot for high-risk people
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Amid the recent spike in COVID-19 cases, the World Health Organization revised its COVID-19 vaccine guidelines, recommending additional booster shots for the high-risk group. However, it said people at medium or low risk no longer need additional COVID-19 boosters. Following the new recommendations, the health agency divided the priority-use groups for COVID-19 vaccination into three levels: high, medium, and low.