- Louie, Janice K;
- Scott, Hyman M;
- DuBois, Amie;
- Sturtz, Natalya;
- Lu, Wendy;
- Stoltey, Juliet;
- Masinde, Godfred;
- Cohen, Stephanie;
- Sachdev, Darpun;
- Philip, Susan;
- Bobba, Naveena;
- Aragon, Tomas;
- Robin, Allen-Contreras;
- Sabrina, Alonso;
- Nicole, Copeland;
- Adam, Corona;
- George, Lee;
- Kaylene, Lemen;
- Melissa, Ongpin;
- Lisa, Watson;
- Sheilah, Zarate
Coronavirus disease 2019 can cause significant mortality in the elderly in long-term care facilities (LTCF). We describe 4 LTCF outbreaks where mass testing identified a high proportion of asymptomatic infections (4%-41% in healthcare workers and 20%-75% in residents), indicating that symptom-based screening alone is insufficient for monitoring for COVID-19 transmission.
