For six years, Mayra Martinez had been going to the same beautician in Queens, and considered her a friend. On Saturday, while getting her hair done, Ms. Martinez, 45, mentioned she had just gotten a new job. "Where?" the beautician asked. "Bellevue," Ms. Martinez said. "She just froze and asked, 'Are you anywhere near him?' " Ms. Martinez recalled. Then the beautician asked her to please find someone else to do her hair. By "him," the beautician meant Dr. Craig Spencer, who is New York's first Ebola patient. As Bellevue Hospital Center goes into its eighth day of treating Dr. Spencer, who had worked with Doctors Without Borders in Guinea, some of its employees are feeling stigmatized.