VAERS accepts reports of adverse events and reactions that occur following vaccination. Healthcare providers, vaccine manufacturers, and the public can submit reports to the system. While very important in monitoring vaccine safety, VAERS reports alone cannot be used to determine if a vaccine caused or contributed to an adverse event or illness. The reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. In large part, reports to VAERS are voluntary, which means they are subject to biases. This creates specific limitations on how the data can be used scientifically. Data from VAERS reports should always be interpreted with these limitations in mind.
The strengths of VAERS are that it is national in scope and can quickly provide an early warning of a safety problem with a vaccine. As part of CDC and FDA’s multi-system approach to post-licensure vaccine safety monitoring, VAERS is designed to rapidly detect unusual or unexpected patterns of adverse events, also known as “safety signals.” If a safety signal is found in VAERS, further studies can be done in safety systems such as the CDC’s Vaccine Safety Datalink (VSD) or the Clinical Immunization Safety Assessment (CISA) project. These systems do not have the same scientific limitations as VAERS, and can better assess health risks and possible connections between adverse events and a vaccine.
Key considerations and limitations of VAERS data:
VAERS data available to the public include only the initial report data to VAERS. Updated data which contains data from medical records and corrections reported during follow up are used by the government for analysis. However, for numerous reasons including data consistency, these amended data are not available to the public.
1st dose of Pfizer Covid vaccine received on December 2, 2021. 2nd dose of Pfizer Covid vaccine received on December 23, 2021. After 3 weeks of 2nd dose (around January 13, 2022), we (parents) noticed patient's aggressive hair fall. After the 2nd Covid shot, the vaccine triggered his underlying condition (alopecia arreata) and after the immense weekly hair fall, it has caused complete - ABSOLUTE - hair loss and balding within 1.5 months (mid January-February 2022). This had NEVER HAPPENED BEFORE.
Open in Wayback Machine
(If this is a foreign report without a description you will be able to read the description in the Wayback Machine on Medalerts if the report became public for the first time before November 18, 2022.)
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|LAB_DATA:||Feb 2022 TSH 2.68 UIU/ML Free T4 1.08 NG/DL White Cell Count 5.8 Red Blood Cell Count 4.33 Hemoglobin 11.2 For complete medical tests and laboratory results, please contact his pediatrician|