Source: VAERS.HHS.GOV
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.
Treatment of COVID-19; Treatment of COVID-19; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient. A 49-year-old female patient (not pregnant) received BNT162b2 (BNT162B2), on 07Mar2021 as dose 1, single (Lot number: EN6202), in left arm, on 28Mar2021 as dose 2, single (Batch/Lot number: unknown), in left arm and on 27Oct2021 as dose 3 (booster), single (Lot number: FF2587), in left arm for covid-19 immunisation; coviD-19 vaccine mrna (mrna 1273) (MODERNA COVID-19 VACCINE), on 25Apr2022 as dose 4 (booster), single (Lot number: 057M21A), in left arm for covid-19 immunisation. The patient's relevant medical history included: "Asthma" (unspecified if ongoing). The patient's concomitant medications were not reported. The following information was reported: DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant), outcome "not recovered" and all described as "Treatment of COVID-19". The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: (02Jun2022) Negative, notes: my last negative test; (06Jun2022) Positive, notes: Tested positive on a home test. Therapeutic measures were taken as a result of drug ineffective, covid-19. Clinical course: Patient had no known allergies. Patient was not received other medication in 2 weeks. Anti-viral details: product=COVID 19 Treatment, brand=Paxlovid, Treatment start date= 28May2022, Treatment stop date= 01Jun2022, Indication=Treatment of COVID-19. Relapse on 06Jun2022, 5 days after stopping Paxlovid, 4 days after her last negative test. Headache and runny nose. Tested positive on a home test. The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.
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| Name | Dose # | Type | Manufacturer | Lot | Route | Site |
|---|---|---|---|---|---|---|
| COVID19 (COVID19 (PFIZER-BIONTECH)) | 3 | COVID19 | PFIZER\BIONTECH | FF2587 | LA |
| RECVDATE: | 06-10-2022 | RPT_DATE: |
| CAGE_YR: | |
| CAGE_MO: | |
| DIED: | U |
| DATEDIED: | |
| L_THREAT: | U |
| ER_VISIT: | |
| HOSPITAL: | U |
| HOSPDAYS: | |
| X_STAY: | U |
| DISABLE: | U |
| RECOVD: | N |
| LAB_DATA: | Test Date: 20220602; Test Name: COVID-19 Home Test; Test Result: Negative ; Comments: my last negative test.; Test Date: 20220606; Test Name: COVID-19 Home Test; Test Result: Positive ; Comments: Tested positive on a home test. |
| V_ADMINBY: | |
| OTHER_MEDS: | |
| CUR_ILL: | |
| HISTORY: | Medical History/Concurrent Conditions: Asthma |
| PRIOR_VAX: | |
| SPLTTYPE: | USPFIZER INC202200806909 |
| FORM_VERS: | |
| TODAYS_DATE: | 06-09-2022 |
| BIRTH_DEFECT: | U |
| OFC_VISIT: | U |
| ER_ED_VISIT: | U |
| ALLERGIES: | |
| V_FUNDBY: |
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