beijing china on thursday defended its vaccine research and development capabilities a day after brazilian president jair bolsonaro cancelled plans to buy a potential covid19 vaccine from it with a jibe that the brazilian people will not be anyones guinea pigthe brazilian people will not be anyones guinea pig bolsonaro said on wednesday a day after health minister eduardo pazuello said brazil wants to buy 46 million doses of chinas sinovac vaccine for the immunisation programmechinas sinovac vaccine was being tested by brazils research centre butantan institute and still needs to be approved by the health regulator to be used in the populationasked for his reaction to bolsonaros comments chinese foreign ministry spokesman zhao lijian told a media briefing that chinas vaccines r d leads the worldhe said four vaccines of china are currently in phase three clinical trial stagechinese vaccines rd indeed spoken off highly by various countries he said adding that china is also part of covax the world health organisation alliance to equitably distribute covid19 vaccines around the worldbolsonaro said the chinese vaccine has not yet completed testing which is the case with all potential vaccines for the virusmy decision is to not purchase such a vaccinebrazil has been one of the countries worst affected by the coronavirusit has had nearly 53 million confirmed cases the thirdhighest tally in the world after the us and india and is second only to the us in terms of deaths with nearly 155000 registered so far according to data collated by johns hopkins universitybolsonaros decision came as a dampener for chinas push to use its vaccines as a diplomatic tool to enhance its global image with the supply of coronavirus vaccines to especially developing countrieshowever zhao said that china is committed that once deployed and put into use our vaccines will be for the global public goodchina will contribute to the accessibility and affordability of the vaccines in developing countries he said adding that china and brazil have seen sound cooperation in covid19 controlwe believe that such cooperation will contribute to our final and absolute victory over the virus in china brazil and around the world he saidbrazils decision on sinovac followed bangladeshs decision to stall the phase3 trial after the chinese firm asked the bangladeshi government to cofinance it