her eyes glazed over; Her cognition was 98% worse /The vaccine did something to her mental cognition; could not swallow /would not open her mouth to eat; urinary tract infection; yesterday, she was at a stage 6 Alzheimer's; yesterday, she was at a stage 6 Alzheimer's; This spontaneous case was reported by a nurse and describes the occurrence of DEMENTIA ALZHEIMER'S TYPE (yesterday, she was at a stage 6 Alzheimer's), CONDITION AGGRAVATED (yesterday, she was at a stage 6 Alzheimer's), GLASSY EYES (her eyes glazed over), COGNITIVE DISORDER (Her cognition was 98% worse /The vaccine did something to her mental cognition) and DYSPHAGIA (could not swallow /would not open her mouth to eat) in an 87-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Broken hip (broke her hips years ago). Concurrent medical conditions included Dementia, Alzheimer's disease (beginning stages may be stage 3 to 4), Wheelchair user, Pain legs (pain in both legs) and Short-term memory loss (bad short-term memory). Concomitant products included WARFARIN SODIUM (COUMADIN) and LISINOPRIL for an unknown indication.   In February 2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. In March 2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 24-Aug-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 24-Aug-2021, the patient experienced DEMENTIA ALZHEIMER'S TYPE (yesterday, she was at a stage 6 Alzheimer's) and CONDITION AGGRAVATED (yesterday, she was at a stage 6 Alzheimer's). On an unknown date, the patient experienced GLASSY EYES (her eyes glazed over), COGNITIVE DISORDER (Her cognition was 98% worse /The vaccine did something to her mental cognition), DYSPHAGIA (could not swallow /would not open her mouth to eat) and URINARY TRACT INFECTION (urinary tract infection). At the time of the report, DEMENTIA ALZHEIMER'S TYPE (yesterday, she was at a stage 6 Alzheimer's), CONDITION AGGRAVATED (yesterday, she was at a stage 6 Alzheimer's), GLASSY EYES (her eyes glazed over), COGNITIVE DISORDER (Her cognition was 98% worse /The vaccine did something to her mental cognition), DYSPHAGIA (could not swallow /would not open her mouth to eat) and URINARY TRACT INFECTION (urinary tract infection) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Vital signs measurement: normal (normal) normal.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Concomitant medications included  gummy worms that has cannabis in them to sleep.,which usually alters the person, but patient did not have it last night. She could not swallow, the caregiver crushed her pills and put it in apple sauce.  no treatment medications reported.   symptom text;acting strange,she was a whole different person,kept telling her to chew,She was just staring ahead,did not know who she was Life,asked if she had eaten, she would respond "zzztttt,Making no sense at all,From midnight to 3am it was all gibberish,it is kind of scary; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.  Concomitant medical conditions could be potentially confounders for the events.