TABLE 2. Prevention measures, risk factors, and challenges associated with prevention of COVID-19 transmission reported during investigations of child care facilities with COVID-19 outbreaks (n = 27)* — District of Columbia, July–December 2020.

Prevention measures, risk factors, and challenges	No. (%)
Prevention measure
Masks worn by teachers and staff members	27 (100.0)
Teachers or staff members with symptoms sent home immediately	26 (96.3)
Cohort size limited to ≤10 personsⴕ	25 (92.6)
Increased daily cleaning and disinfection	20 (74.1)
Temperature monitoring	17 (63.0)
Symptom monitoring of children and staff members	15 (55.6)
No interactions between cohorts	14 (51.9)
Cleaning and disinfecting by third party	10 (37.0)
Staggered arrival and departure times	2 (7.4)
Risks and challenges
Limited physical distancing within cohort	27 (100.0)
Limited physical distancing among teachers or staff members from different cohorts	15 (55.6)
Teachers or staff members floated§ between classrooms	10 (37.0)
Break room available for teachers and staff members	4 (14.8)
Siblings in multiple affected cohorts	3 (11.1)
Interactions between separate cohorts	2 (7.4)
External playdates among children of same or different cohorts from child care facility	2 (7.4)
Symptomatic teachers or staff members told to continue working	1 (3.7)

*All guidance recommendations are not included in this table because they might not have been documented during case investigations. Only facilities with an outbreak are included.

^ⴕ Cohort size limit increased to 12 persons during phase 2 guidance updated in mid-December 2020 (https://coronavirus.dc.gov/sites/default/files/dc/sites/coronavirus/page_content/attachments/Phase_Two_COVID-19_DC_Health_Guidance_For-Childcare_2021.01.15_FINAL.pdf).

^§ Floating teachers or staff members are those who leave their assigned cohort to cover for another teacher or staff member who is absent or on break.