ASTHMA ATTACK; COVID PNEUMONIA; SYMPTOMS OF ARTHRITIS; COULD NOT WALK; NO STRENGTH TO ENTIRE BODY; This spontaneous potential legal report received from a patient concerned a 30 year old female of an unspecified race and ethnicity. The patient's height and weight were not reported. The patient's concurrent conditions included: seasonal allergies, pollen allergy, minor asthma (growing up), no alcohol use, non-smoker, and asthma. The patient was perfectly fine before the vaccination. The patient was not pregnant at time of vaccination. The patient had no history of drug abuse or illicit drug usage. The patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of admin not reported, batch number: 204A21A and expiry: Unknown) dose was not reported, 1 total administered to the left arm on 03-MAY-2021 for prophylactic vaccination. Age at time of vaccination 30 years old. No concomitant medications were reported. It was reported that after 48 hours of getting the vaccine, on 05-MAY-2021, the patent was hospitalized and mentioned within 8 hours of vaccination she was sick and went to the emergency room. It was reported that 3 to 4 hours later the patient was not feeling that well, after 8 hours she was not able to breath well, within 15 hours the patient was in emergency room and 10 hours later went back to the emergency room. It was reported that the patient could breathe and medication was not working and the patient was kept in the emergency room again because she could not breath without air around the clock and there was fluid her my lungs. It was reported that, before the vaccine the patient got the DOT physical test as company required and she was able to pass the test but then she got the vaccine and was hospitalized, the patient was diagnosed as COVID pneumonia due to vaccine. It was mentioned that the patient was supposed to start work the day after receiving the vaccine but she was not able to, she was in the hospital until the weekends for 4 to 5 days. The patient was doing better and was deiced to go home and if she had issues she could come back. It was reported that over the course of the next 6 months, she had been in and out of the hospital due to fluid build again. It was mentioned that her asthma since having the vaccine had gone from manageable and not using inhaler so much to reliant on inhaler and had to go to the hospital for asthma attack. The patient was went to emergency room because of not being able to breath and being in pain, it brought up symptoms of arthritis, it has been over a year. It was also mention that the patient started having adverse events after the vaccine and she was perfectly fine before that. On 03-May-2021, she started to have headache and high fever 103 degree Fahrenheit and was not able to feel better with anything over the counter. It was said that some of the problems were getting better but her asthma was 10 times worse than before and the patient had to put on morphine due to pain and she mentioned that she was never on morphine a day in her life before. It was reported that, both lungs were filled with fluid in less than 24 hours, the patient had to wheel in a wheelchair and could not walk, no strength to entire body and was out of work for 2 weeks and a little over a month because she was not feeling good. On 03-MAY-2022, Laboratory data included: Body temperature (NR: not provided) 103 F (high fever). Laboratory data (dates unspecified) included: Physical examination (NR: not provided) not reported. The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The patient had not recovered from asthma attack, and the outcome of covid pneumonia, symptoms of arthritis, could not walk and no strength to entire body was not reported. This report was serious (Hospitalization Caused / Prolonged).; Sender's Comments: V0: 20220553032-Covid-19 vaccine ad26.cov2.s-Covid pneumonia. The event(s) has a compatible/suggestive temporal relationship, is unlabeled, and has unknown scientific plausibility. There is no information on any other factors potentially associated with the event(s). Therefore, this event(s) is considered unassessable.   20220553032-Covid-19 vaccine ad26.cov2.s-Asthma attack. The event(s) has a compatible/suggestive temporal relationship, is unlabeled, and has unknown scientific plausibility. There are other factors more likely to be associated with the event(s) than the drug. Specifically: MEDICAL HISTORY, UNDERLYING DISEASE. Therefore, this event(s) is considered not related.