Age: 31.0
Sex: F
Vaccine: COVID19
Symptoms: Chills, Headache, Menstruation delayed, Pain, Underdose
Clinical narrative: she noticed 2 drops of the Pfizer BioNTech Covid-19 Vaccine during the administration of the 2nd dose.; I felt like symptoms with 10 min of chills; A major headache and body aches; A major headache and body aches; My period come over a week late; This is a spontaneous report received from a contactable consumer (patient) via a Pfizer sponsored program support.  A 31-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot Number: EW0187), via intramuscular route of administration, administered in right arm on 20May2021 at 12:35 (at the age of 31-years-old) as dose 2, single dose for covid-19 immunisation. The patient family medical history relevant to adverse events was diabetes, high blood pressure and cancer run in her family. Concomitant medications were none. The patient had no prior vaccinations. The patient previously received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot Number: EW0171), via intramuscular route of admininstration, administered in right arm on 29Apr2021 at 12:50 (at the age of 31-years-old) as dose 1, single for COVID-19 immunisation and experienced minor with a light headache, flushed cheeks and tenderness near heart. It was reported that on 20May2021, patient noticed 2 small drops of PFIZER-BIONTECH COVID-19 vaccine during the administration of the 2nd dose and might have received less than the recommended dose. She was concerned that it may lessen the efficacy because she thought that the dose, she received may be lesser than the ideal dose. The healthcare professional who administered the vaccine mentioned that it was only because of the syringe being retractable. She noticed some tiny drops of fluid on the seat. She asked the pharmacist about the fluid, he told her fluid could left the syringe while being administered. She would like to ensure she still received the appropriate amount of the vaccine. Upon follow-up (22Jul2021), patient reported that, she had no life-threatening side effects from the Pfizer vaccine series, and after the second dose on 20May2021, patient felt like symptoms with 10 min of chills, a major headache and body aches and her period came over a week late. The events were non-serious. The outcome of the events was unknown.  No follow-up attempts are needed; information about lot/batch number cannot be obtained.  Follow-up (21Jun2021): This follow-up is being submitted to notify that the batch and lot number is not available despite the follow-up attempts made. Follow-up attempts have been completed and no further information is expected.  Follow-up(22Jul2021): This is a follow-up spontaneous report from a contactable consumer. This consumer reported in response to Non-HCP letter sent which included that: Dates, route and anatomical site of administration and lot numbers of first and second doses of vaccination was added. family history (Diabetes, high blood pressure, cancer), events (chills, a major headache and body aches, and my period come over a week late).  Follow-up attempts are completed. No further information is expected.