Vaccine preferences found to be driven by national loyalty and trust
Coronavirus
São Paulo Research Foundation (FAPESP) Jul 28 2025 During Brazil's COVID-19 vaccination campaign, when several brands of vaccines were available and the Chinese vaccine was the most common, an unprecedented phenomenon occurred. People crossed neighborhoods or even cities in search of vaccination centers that administered a specific brand of vaccine. Photos of people getting vaccinated were posted on social media alongside proud hashtags praising the national health system, such as "Long live
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