Pfizer COVID Vaccine EUA Patient received Pfizer vaccine 3/3/21. COVID Positive 3/20/21  3/20/21: Patient is a 77-year-old female with past medical history of bilateral breast cancer (post bilateral mastectomy), CHF, CAD, CKD stage II/III, HTN, obesity, obstructive sleep apnea (not on CPAP), and spinal stenosis presenting today.  Patient presented via ambulance her daughter.  Patient was unable to cooperate, HPI obtained from patient's daughter.  Patient's daughter stated approximately 1 week ago patient started to be "unresponsive" and was not talking/responding often. Mostly answered "yes/no" questions.  She seemed the be "acting different".  When asked, pt denied any pain over the last week.  Her daughter denies any infectious process such as fever/chills or cough cough.  Her daughter notes approximately 2 years ago patient has similar event, was seen in the ED, but nothing remarkable was found.  Reviewed today, patient's daughter stated the patient had a "shaking "episode in had "on responses ".  It was described as "shivering" and a blank stare during this unresponsive state.  Episode lasted approximately 1 minute.  The daughter denied any history of strokes or seizures. Pt usually lives with another daughter and so the daughter present was unable to verify if pt takes her prescribed medications daily. Her daughter denies knowing any Advance Directives or POA set up. Smoking, alcohol, and illicit drug use were denied. Pt was seen 9/2019 for a similar event with concern of stroke vs syncope vs TIA that resolved on its own.  3/25/21: 77-year-old F presented on admission that began approximately 6 days prior. HPI obtained from patient's daughter on admission. Patient's daughter stated approximately 1 week ago patient started to become "unresponsive" and was not talking/responding often. Mostly answered "yes/no" questions. Patient's daughter stated the patient had a period of unresponsives and was shaking her left arm on the day of admission. It was described as "shivering" and a blank stare during this unresponsive state. Left sided weakness was noted. In the ED, vitals signs significant for 88% on room air. CXR showed bilateral infiltrates in lower lobes, CT of head was unremarkable, EKG normal sinus with sinus arrhythmia, CT of chest completed due to elevated D-Dimer showed no PE but showed ground-glass airspace disease and stable 14mm nodule at lower pole of right thyroid. Pt was admitted for Acute Encephalopathy with unknown etiology. COVID testing came back positive. Patient started on Routine COVID management protocol which included IV dexamethasone, remdesivir, vitamin D, vitamin C, zinc, with daily labs (d-dimer, CPK, CRP, CMP, LDH until stable/not upward trending). Patient to continue vitamin D, vitamin C, and zinc upon discharge to rehab. Patient had MRI obtained which showed scattered foci of acute infarcts right posterior parietal lobe/multiple foci of acute microhemorrhages likely hypertensive. Neurology consulted, stated infarct could be due to COVID so continued on lovenox and stopped aspirin. Recommended to keep blood pressures 110-140/80-90. Last documented note from neurology was 03/22/2021 - contacted multiple times but unable to reach afterwards. Discharging patient on xarelto for 30 days and recommending to follow-up outpatient to transition to aspirin and plavix. With this management on board, patient's symptoms improved significantly since admission. Patient discharged in stable condition to rehab.