WhatsApp Vaccine Discourse (WhaVax): An Expert-Annotated Dataset and Benchmark for Health Misinformation Detection
We introduce WhaVax, a new expert-annotated dataset of vaccine-related WhatsApp messages collected from large Brazilian public groups spanning multiple pandemic years. The dataset was constructed through a rigorous, carefully designed pipeline that integrates keyword-based data collection, semantic deduplication to remove near-duplicate content, and a multi-stage annotation protocol conducted by medical specialists. This process produced a high-quality gold-standard corpus, characterized by subs
Record details
Published: 25 March 2026
Source: arXiv
Category: Research
Topics: Misinformation · Healthcare
Retrieved: 14 July 2026
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How to cite this record
ethics.ai (25 March 2026), “WhatsApp Vaccine Discourse (WhaVax): An Expert-Annotated Dataset and Benchmark for Health Misinformation Detection,” evidence record 6765, https://ethics.ai/record/6765 (originally published by arXiv).
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