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.
16 year old male who got first Pfizer Covid vaccine 4/30, then by the next morning experienced non-bilious emesis for a few hours, as well as fever, chills, body aches, and HA. The body aches and HA continued through today when he began experiencing chest pain while lying down. Chest pain improved on sitting up, standing, sitting forward. No shortness of breath.
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|COVID19 (COVID19 (PFIZER-BIONTECH))||2||COVID19||PFIZER\BIONTECH||SYR||Unknown|
|LAB_DATA:||5/2/2021 18:58 WBC: 7.49 RBC: 5.49 (H) Hgb: 15.5 Hct: 45.1 MCV: 82.1 MCH: 28.2 MCHC: 34.4 RDW: 12.4 Plt: 205 Differential type: Automated Abs neuts: 4.22 Abs immature grans: 0.02 Abs lymphs: 1.99 Abs monos: 1.10 (H) Abs eos: 0.09 Abs basos: 0.07 Neuts: 56.3 Immature grans: 0.3 Lymphs: 26.6 Monos: 14.7 Eos: 1.2 Basos: 0.9 NRBCs: 0.0 Abs NRBCs: 0.00 Sed rate (ESR): 2 BNP: <10 Magnesium: 2.0 Troponin I: 3.357 (H) Na: 138 K: 3.5 (L) Cl: 99 CO2: 27 Anion gap w/o K: 12 BUN: 12 Creatinine: 0.82 Glucose: 93 SGOT/AST: 37 SGPT/ALT: 18 Alk Phos: 230 Bilirubin total: 1.6 (H) Protein: 7.3 Albumin: 4.4 Globulin (calc): 2.9 A:G Ratio: 1.5 Calcium: 9.0 C-reactive protein: 5.7 (H) 5/2/2021 20:47 Hep B Surface Ag: Negative Hep C Ab: 0.07 Hep B Core Total Ab: Negative Hep B Surf Ab: 0.69 Cytomegalovirus IgG: 1.6 (H) Cytomegalovirus IgM: <0.2 Interpretation: Prior infection,probably not active COVID 19 ab igG: Negative Comment: (note) 5/3/2021 03:30 Troponin I: 4.768 (H) C-reactive protein: 4.4 (H) 5/3/2021 11:00 Troponin I: 6.240 (H) CK: 559 (H) CK-MB: 42.6 (H) Index: 7.6 (H) Interpretation: MB(CK2) is associ... C-reactive protein: 3.6 (H) 5/3/2021 11:00 CK: 559 (H) 5/3/2021 18:45 5/3/2021 18:50 Troponin I: 5.361 (H) C-reactive protein: 2.3 (H) EKG 5/2 and 5/3 with ST segment elevation. Echocardiogram 5/3 with normal function and no wall motion abnormalities Cardiac MRI 5/3 with evidence of myocarditis, no ischemia, normal coronary arteris|
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