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Coronavirus pandemic
ChinaScience
Josephine Ma

My Take | Controversy over Covid-19 jabs offers lessons in vaccine development for China

  • Making claims about experimental shots before the results were in raised expectations and created doubts
  • Drug makers must learn to follow the international playbook when it comes to clinical trials and transparency

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Chinese Covid-19 vaccines have been the subject of debate and political bickering. Photo: Reuters
There has been intense debate and political bickering over Chinese Covid-19 vaccines in recent months – in particular over how well they work.

The controversy provides lessons for China as a newcomer to global vaccine development, an area where it wants to take a leading role.

The first is to do with managing expectations. Even before the pharmaceutical firms had provided data from clinical trials, Chinese officials and company executives were making claims – saying there hadn’t been a single infection among people who travelled abroad after getting the experimental jabs.

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The claims were dubious since they were referring to people who were not part of the trials and it would have been difficult to trace all of them. There were also reports in international media to the contrary, that some vaccinated Chinese had in fact been infected.

Trumpeting the experimental jabs so early, before the results were in, heightened public expectations and also created doubts.

03:05

China-made coronavirus vaccines widely distributed despite efficacy concerns

China-made coronavirus vaccines widely distributed despite efficacy concerns
The second lesson is on clinical trials and transparency. Sinopharm and Sinovac are major drug makers that had been through the World Health Organization prequalification process for other vaccines, so safety and quality control wasn’t a problem.
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