Follow CAP on Social Media

Listen to the CAP Podcast

The Narrative on the Efficacy of Chinese-Made Vaccines is Beginning to Change

Brazil’s decision to conduct a real-world experiment that tested the effectiveness of the CoronaVac vaccine made by the Chinese pharmaceutical company Sinovac is contributing to a rapid shift in the perception of whether Chinese-made jabs will protect people from either being hospitalized or dying from COVID-19.

All the adult residents of Serrana, a town of 45,000 people in southeastern Brazil, were offered CoronaVac between February and April as part of the “Project S” experiment, according to a report in the Wall Street Journal.

  • Get a daily email packed with the latest China-Africa news and analysis.
  • Read exclusive insights on the key trends shaping China-Africa relations.
  • Full access to the News Feed that provides daily updates on Chinese engagement in Africa and throughout the Global South.

China, Africa and the Global South... find out what’s happening.

Subscribe today for unlimited access.

What is The China-Africa Project?


The CAP is passionately independent, non-partisan and does not advocate for any country, company or culture.


A carefully curated selection of the day’s most important China-Africa stories. Updated 24 hours a day by human editors. No bots, no algorithms.


Diverse, often unconventional insights from scholars, analysts, journalist and a variety of stakeholders in the China-Africa discourse.


A unique professional network of China-Africa scholars, analysts, journalists and other practioners from around the world.