Tested positive for Covid-19; Tested positive for Covid-19; This is a spontaneous report from a contactable consumer (patient). A 73-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Batch/Lot number was not reported), as dose 1, single on 05Aug2021, then as dose 2, single on 09Sep2021, both via an unspecified route of administration, at the age of 73-years-old, for COVID-19 immunisation. Medical history included Heart attack from 2017 to an unknown date and 2 stent placements. The patient's concomitant medications were not reported. The patient tested positive for COVID-19 on Sep2021. The events resulted in emergency room and physician office visits. The clinical course was as follows: The patient was experiencing a loss of taste and smell and wanted to know how long this will last. It happened 3 days after his second dose and that he also tested positive for Covid-19. He wouldn't have gotten tested, but he had scheduled a colonoscopy and they required him to be tested for Covid prior to the procedure. Was asking if the loss of taste and smell is from the vaccine. He still has not regained his sense of taste and smell and has heard that others have experienced this after the vaccine. He was not sure if it was from having Covid or if it was from the vaccine. One of his friends stated that their sense of taste and smell came back. He wouldn't have even had the Covid test except for the colonoscopy that was scheduled and required it. He guesses he came down with Covid. He doesn't know how he got Covid. Supposedly the vaccine doesn't give a person Covid. He has had other vaccines in the past like polio where sometimes you get a slight dose to build up immunity. It sounds like from the material the vaccine doesn't give you the virus, so he doesn't know how he got Covid. He can say he didn't have any breathing issue with this. Explained that he got the second dose about 2 weeks ago, around 10Sep2021 and has experienced a loss of taste and smell. He wanted to report this and know if it comes back on its own, will it go away on its own or how long will it last. The loss of taste and smell started 3 days after getting the second shot. With the first shot he didn't have any side effects; it was given on 05Aug2021. The second dose was given on 09Sep2021 and 3 days he had some reactions, he had other symptoms after the second shot. Then remarks that he is not sure if his symptoms are from the vaccine or if it was from Covid. It was then explained that he had the vaccines done, both shots. Afterwards he was scheduled for a colonoscopy, regular 3 years check-up in regard to the colonoscopy for 23Sep2021. He was told that he had to have a Covid test 3 days before the colonoscopy, so he went into an ER department and they did a test. Within a day it came back he had COVID; the test was done on 20Sep2021 with results back the next day on 21Sep2021. Because of the positive test, the colonoscopy was rescheduled for 11Nov2021. Because of this he not sure if what he experiences was because of shot or the exposure to Covid. It is reported that he had, after the second shot, diarrhea for 2 days, muscle strain and pain in his back, chills with a slight temperature. Diarrhea for 2 days- this started about 3 days after the second shot, he remarks all the events started about 3 days after the second shot. It is reported he has gotten diarrhea before but not for this long at the time, normally it is a one and done. Laughs and says he felt like he was preparing for the colonoscopy during this time. Muscle strain and pain in the back- but it wasn't much. This started about 3 days and lasted about half a day. Chills with slight temperature- his temperature was about 99.5 and he had some chills. The chills were what lead to him taking his temperature. This happened twice, the chills. This was during the first 3 days after getting the shot and lasted for about an hour. The two events were about a day apart from each time. He only checked his temperature once, the last time he had chills and noticed the slight temperature, but it wasn't bad. He has felt pretty fine since this other than the loss of taste and smell which is still lingering and the reason for his call. The patient underwent lab tests and procedures which included body temperature: 99.5 on Sep2021, SARS-COV-2 test: positive on 20Sep2021. The outcome of the events was unknown.    The lot number for the vaccine, [BNT162B2], was not provided and will be requested during follow-up.