Most will recover within 4 weeks after their infection, while some may find their symptoms persisting for up to 12 weeks.
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SINGAPORE - A booster shot with the Moderna vaccine offered older people better protection against Covid-19 if they had previously taken Pfizer jabs, researchers at the National Centre for Infectious Diseases (NCID) have found.
Health News - A booster shot with the Moderna vaccine offered older people better protection against Covid-19 if they had previously taken the Pfizer jabs, researchers at the National Centre for Infectious Diseases (NCID) have found. Seven days after taking a booster shot, people above. Read more at www.tnp.sg