This case is linked to case 2021SA425376 (CLUSTER). This case involves Adult female patient who experienced severe bronchitis (bronchitis) after receiving vaccine INFLUENZA VACCINE. The patient past medical history, medical treatment, vaccination and family history were not provided. On an unknown date, the patient received a dose of suspect INFLUENZA VACCINE produced by unknown manufacturer (batch number and expiry date: not reported) via unknown route in unknown administration site for prophylactic vaccination. On an unknown date, the patient developed a non-serious severe bronchitis (bronchitis) (unknown latency) following the administration of INFLUENZA VACCINE. It was reported "used to always faithfully get the flu vaccine every year as an adult and every year, she always developed severe bronchitis a couple months after getting the flu vaccine. she would then end up at a walk in clinic on a weekend sitting their for hours waiting to be seen. It always took an entire month to completely recover from the bronchitis. she had always eaten healthy, have always exercised at the health club, she is a non-smoker and have always washed hands and used hand sanitizer so she could not understand why she would end up in a walk in clinic every year with severe bronchitis. 5 years ago, she started learning about how "harmful" the vaccines that veterinarians were giving dogs were. It angered me so much to learn how we were so deceived that she decided at that point she was no longer going to allow my doctor to give me anymore flu vaccines. And guess what, she have not developed bronchitis in 5 years nor have I been sick with anything. One study she read claimed the flu vaccine increase lung tissue damage and pneumonia related death. That would explain why she always ended up with severe bronchitis every year. she "randomly" post this story of my experience with the flu vaccine on social media and I always get several responses back to me telling me the same thing happened to them. she recently saw a new television commercial on the 2021 flu vaccine. During the commercial they stated all the possible side effects and "bronchitis" was one of the side effects. she went to the flu vaccine's website. "Flulaval quadrivalent" is the name of the flu vaccine and she began reading all the possible side effects. she was shocked to read (adverse events that occurred most frequently included) "upper respiratory infection." For those who do not know, "bronchitis" is by definition an (upper respiratory infection.)" Ironically, on the fact sheet your doctor gives you after they give you a flu vaccine, it reads: "Why get vaccinated?" There answer: "to prevent the risk of flu complications like "bronchitis," "pneumonia", "sinus infections" and "ear infections." The risks from the flu vaccine listed on the fact sheet were soreness, redness, and swelling where shot is given. No where does it state: {adverse events that occurred most frequently included } "upper respiratory infection." Had I known that 29 years ago, she would NOT have taken the flu vaccine every year. So for 29 years, I paid "big pharma" to make me sick and give me severe bronchitis every year". It is unknown if the patient experienced any additional symptoms/events. It is unknown if there were lab data/results available. It was not reported if the patient received a corrective treatment for the event. At time of reporting, the outcome of event was reported as unknown. There will be no information available on the batch number for this case.