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Thank you for your very helpful and informative Substack.

I wonder whether the patterns you observe are due to VAERS deleting more recent reports of a case, given this explanation in the VAERS Data Use Guide: "when multiple reports of a single case or event are received, only the first report received is included in the publicly accessible dataset. Subsequent reports may contain additional or conflicting data, and there is no assurance that the data provided in the public dataset is the most accurate or current available" (p. 3). The negative interpretation of this policy is that it allows VAERS to eliminate some of the worst outcomes, such as when a case's condition deteriorates. Are the dates received of the retained and deleted reports consistent with the "keep the first report" policy?

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