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Antibodies from Sinovac's COVID-19 shot fade after about 6 months, booster helps - study

13 Sept 09:07 Key points summarised by AI

Antibodies generated by Sinovac's COVID-19 vaccine decline significantly below a key detectable threshold approximately six months after the second dose for most recipients.
A Chinese study revealed that a third dose of the Sinovac vaccine provides a strong booster effect, increasing antibody levels 3-5 fold compared to those seen after the second shot.
The study noted that the precise antibody level required for a vaccine to prevent the disease is still unknown, making the impact of declining antibodies on effectiveness unclear.
Amid concerns over waning immunity and new variants, countries like Indonesia, Thailand, and Turkey have begun offering or are considering booster shots for individuals fully vaccinated with Sinovac.

Yesterday 12:56 Key points summarised by AI

President Macron condemned widespread rioting and looting during nationwide protests, blaming far-left activists and criminals for the "unrestrained violence" and vowing accountability for those who "sought to bring down the Republic."
Over 2,400 arrests were made as protests against rising living costs and poor school conditions escalated, causing extensive damage to public buildings and businesses in cities like Paris, Limoges (where City Hall burned), Marseille, and Lyon.
The unrest, which organizers hoped would revive the "yellow vest" movement, saw political leaders trade blame, with Macron instructing prefects to protect public buildings and potentially ban future protests to prevent further disorder.