COVID-19 Vaccinations And False Positives

My mother-in-law broke her hip last week. When she was admitted to the hospital, the hospital administered a COVID-19 test. Despite showing no COVID-19 symptoms and have been given the first COVID-19 shot earlier in the month, she tested positive for COVID-19. The doctors said she would have to be transferred to a medical facility housing COVID-19 patients. My wife was upset and demanded a second test. Not surprisingly, the second test came back negative. Although my mother-in-law has probably developed some immunity from the first shot, it is unlikely she has enough immunity to survive the viral load in a COVID-19 ward. The doctors almost made a dreadful mistake. Thanks to my wife, my mother-in-law dodged that bullet.