COVID PNEUMONIA; HEPATITIS FROM DRUGS; HALLUCINATIONS; REGULAR PNEUMONIA; PROBLEMS WITH KIDNEYS; INFECTIONS (NOT SURE IF UPPER RESPIRATORY TRACT OR URINARY TRACT); COULD BARELY WALK 1/2 A MILE WITHOUT GETTING OUT OF BREATH; WEIGHT LOSS (17 LB DURING HOSPITAL STAY OF 20 DAYS); This spontaneous report received from a patient concerned a 75 year old male. The patient's height, and weight were not reported. The patient's past medical history included: ex-smoker (was smoker for 67 years, but now not a smoker anymore), and toxic agent exposure, and concurrent conditions included: ischemic heart disease (toxic agent), emphysema (held in check 14 years, as shown by pulmonary function tests, remained the same), and COPD (Chronic obstructive pulmonary disease)- was considered 100% disabled but now okay. The patient was previously treated with covid-19 vaccine ad26.cov2.s (dose number in series 1) (suspension for injection, route of admin not reported, batch number: 1805020, and expiry: unknown) dose was not reported, 1 total was administered to left arm on 30-MAR-2021 for prophylactic vaccination. On 01-DEC-2021, patient was not feeling well, so he went to emergency room and tested positive for covid (confirmed covid-19 infection and confirmed clinical vaccination failure) following administration of covid-19 vaccine ad26.cov2.s (dose number in series 1),  The patient received covid-19 vaccine ad26.cov2.s (dose number in series 2) (suspension for injection, route of admin not reported, batch number: 211D21A and expiry: unknown) dose was not reported, 1 total was administered on 30-NOV-2021 for prophylactic vaccination. No concomitant medications were reported.  On 01-DEC-2021, the patient was not feeling well. He went to the emergency room and was tested positive for Covid and was then sent to home. On 05-DEC-2021, patient went to the hospital due to 102.9 F (body temperature), and on the same day he got hospitalized. Patient stated that during the first 6-7 days, he didn't believe he was going to go home. Patient stated, it was a terrifying experience, On an unspecified date, in DEC-2021, (during hospital stay) patient developed COVID pneumonia, hepatitis from drugs, problems with kidneys, infections (not sure if upper respiratory tract or urinary tract), hallucinations (saw colors but not people, went from black to greys and himself in the, then to colors but no people and happy), and picked up regular pneumonia. Patient was treated with antibiotics (had a reaction to both first and second ones), and also got shots in the abdomen every day to not cause clots. During hospitalization, patient did not need ventilator but was put on on 10L oxygen therapy. Patient was bedridden during hospital stay, so he lost 17 Ib and muscle mass (stated weight was 181 Ib on discharge day). On an unspecified date, patient had X-ray, which showed one lung was all white and the other one 3/4. On 25-DEC-2021, patient was sent home but he could barely walk 1/2 a mile without getting out of breath. Patient stated, doctors said he would take 9 weeks to 3 months to recover. Patient was happy because only a few weeks after discharge from hospital he could walk now, if he pushes it, he would get out of breath. Patient did breathing exercises and took vitamins and everything to got better. Patient stated, each day it got better. He attributes this to vaccine, stated it might have impacted his chances of survival. Patient was hospitalized for 20 days (dose number in series 2). The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The patient was recovering from could barely walk 1/2 a mile without getting out of breath, and the outcome of covid pneumonia, problems with kidneys, hepatitis from drugs, weight loss (17 Ib during hospital stay of 20 days), infections (not sure if upper respiratory tract or urinary tract), hallucinations and regular pneumonia was not reported (dose number in series 2). This report was serious (Hospitalization Caused / Prolonged). This report was associated with product quality complaint: 90000211650. This case, involving the same patient is linked to 20220140794.; Sender's Comments: V0: 20220123831-covid-19 vaccine ad26.cov2.s- covid pneumonia, problems with kidneys, hepatitis from drugs, weight loss (17 Ib during hospital stay of 20 days), infections (not sure if upper respiratory tract or urinary tract), hallucinations and regular pneumonia, could barely walk 1/2 a mile without getting out of breath. This event(s) is considered unassessable. 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).