People who take Sinovac vaccine at higher risk of severe disease from Covid-19: NCID-MOH study, Health News & Top Stories – The Straits Times

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It’s a study of 1.25 million people aged 40 and above. The study focused on the Delta variant – which is the dominant strain in Singapore – and accounted for differences in age, gender, race, housing type and the daily differences in infection rate.

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Linette Lai
Political Correspondent

  • Published Dec 15, 2021, 8:24 pm SGT

SINGAPORE – People who received two doses of China’s Sinovac vaccine were more likely to develop severe disease from Covid-19 than those who got two shots of the mRNA-based Pfizer-BioNTech or Moderna vaccines, a new local study has found.

“This supports the need for three doses of Sinovac-CoronaVac vaccine as a primary series,” the National Centre for Infectious Diseases (NCID) and Ministry of Health said in a joint statement on Wednesday (Dec 15).

Researchers found that the Sinovac vaccine was 60 per cent effective against severe disease, compared with 90 per cent for the Pfizer vaccine and 97 per cent for Moderna’s.

In other words, people who took the Sinovac vaccine were more likely to require supplemental oxygen and intensive care, and also more likely to die of the coronavirus.

The study of 1.25 million people aged 40 and above was carried out between Oct 1 and Nov 21, and 73.7 per cent of them  had taken the Pfizer vaccine, while another 23.9 per cent had taken the Moderna vaccine. The remaining 2.4 per cent had been vaccinated with Sinovac.

Of this group, 62,900 people eventually became infected with Covid-19 and 1,710 fell severely ill.

The study focused on the Delta variant – which is the dominant strain in Singapore – and accounted for differences in age, gender, race, housing type and the daily differences in infection rate.

The authorities suggested that people who have taken two doses of the Sinovac vaccine should get either the Pfizer or Moderna vaccine as a third dose in their primary vaccination series. Otherwise, they should get a third dose of Sinovac.

It noted that some international data backs up its findings.

https://www.straitstimes.com/singapore/health/people-who-take-sinovac-vaccine-at-higher-risk-of-severe-disease-ncid-study

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1 Response to People who take Sinovac vaccine at higher risk of severe disease from Covid-19: NCID-MOH study, Health News & Top Stories – The Straits Times

  1. E Lye says:

    Ha ha ha. Sometimes you don’t know whether to laugh or cry.
    DON’T take – die but 100 percent have no risk of adverse events.
    TAKE – also die but higher risk of severe disease AND risk of vaccine adverse events.
    Is this a no-brainer or only for no-brains.
    We will only know the true story if vaccine producers have their immunity TAKEN away and are liable for adverse events which they can mitigate by buying insurance just like everybody else. Then we will see the true costs. If it wasn’t free{not really since your grandchildren will be taxed for this} and people have to pay for their jabs, they might scrutinise the claims made by the pharmaceutical companies.

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