Health officials say a dentist may have exposed thousands to HIV and hepatitis . The screenings began Saturday ; by Monday , nearly 1,000 patients had been tested . ( CNN ) -- A patient at the clinic was infected with HIV, according to Dr. Michael Weinstein, director of infection prevention for the Los Angeles County Department of Public Health.
Health officials say a dentist may have exposed thousands to HIV and hepatitis . The screenings began Saturday ; by Monday , nearly 1,000 patients had been tested . A patient at the clinic was infected with HIV, according to Dr. Michael Weinstein, director of infection prevention for the Los Angeles County Department of Public Health.