eizzo@adirondackdailyenterprise.com A resident of the Mercy Living Center in Tupper Lake tested positive for COVID-19 on Tuesday, but a follow-up test on Wednesday showed that same person to be negative. Adirondack Health, the organization that oversees the nursing home and rehabilitation center, alerted the families of nursing home residents that a person at the facility had tested positive on Tuesday. As required by the state Department of Health, all residents of the nursing home were then tested for COVID-19. Two of about 60 test results were still pending as of Wednesday evening, but each of the results so far have come back negative, including the result of the resident who initially tested positive and that person’s roommate, according to Adirondack Health spokesman Matt Scollin.