Contact Tracing Statistics
In contact tracing, public health staff work with an individual who has a positive test for COVID-19 to help them recall everyone with whom they have had close contact during the timeframe while they may have been infectious. Read more about Delaware's contact tracing plan
June 27, 2020 - May 25, 2022
Represents all data since the launch of the current contact tracing system. Earlier cases were investigated and contact traced using a different system.
Total contacts named
271,882
Contacts reached
132,969
49%
of total contacts named
Avg. contacts per case
2.3
Cases with known exposure to another case
44,508
17%
of total positive cases
Total positive cases
Reported June 27, 2020 - May 25, 2022.264,470
6,855
3%
of total positive cases
Cases not eligible for interview
- Incarcerated cases: 1373
- Hospitalized cases: 2713
- Long-term care cases: 2769
Cases eligible for interview
No attempt is made to interview incarcerated persons, hospitalized persons, and long-term care residents because these individuals are monitored by the institutions responsible for their care.257,615
97%
of total positive cases
106,408
41%
of cases eligible for interview
Cases without a validated phone number
Phone numbers that are originally provided may not always be correct or current and are therefore evaluated for validity. Only valid phone numbers (work, home, cell, etc.) are counted on this dashboard. New efforts to obtain and validate phone numbers are being explored.Cases with a valid phone number
151,207
59%
of cases eligible for interview
105,875
41%
of cases eligible for interview
Cases not reached
Not all those eligible for interview are reached.Reasons why people aren't reached right away:- Person is unavailable or busy
- Interviewer gets no answer, voice mail, or busy signal
- Interviewer is told they have the wrong number, is disconnected, or gets fast busy signal
- Person is determined to be hospitalized or incapacitated
- Person fails to verify their identity on the phone
- Person is determined to be deceased
Cases reached
Includes cases that could not be reached by phone that were reached by field teams. Cases reached within 24 hours: 101978 or 67%151,740
59%
of cases eligible for interview
34,625
23%
of cases reached
Cases who did not complete interview
Not all those who are reached are interviewed immediately.Reasons for a delayed interview:- Person is hard of hearing, will be interviewed by an ESL interpreter in person
- Person has a language barrier, will be interviewed by the appropriate interpreter
- Person was busy, made an appointment for a later time
- Person did not consent to being interviewed
- Person refused to speak with interviewer
- Person told interviewer they never tested positive
Cases who completed interview
117,115
77%
of cases reached
43,805
37%
of cases who completed interview
Cases who named no contacts
Cases who named at least one contact
73,310
63%
of cases who completed interview
Total contacts named
271,882
140,325
52%
of total contacts named
Contacts without a valid phone number
Phone numbers that are originally provided may not always be correct or current and are therefore evaluated for validity. Only valid phone numbers (work, home, cell, etc.) are counted on this dashboard. New efforts to obtain and validate phone numbers are being explored.Contacts with a valid phone number
131,557
48%
of total contacts named
138,913
51%
of total contacts named
Contacts not reached
Not all those eligible for interview are reached.Reasons why people aren't reached right away:- Person is unavailable or busy
- Interviewer gets no answer, voice mail, or busy signal
- Interviewer is told they have the wrong number, is disconnected, or gets fast busy signal
- Person is determined to be hospitalized or incapacitated
- Person fails to verify their identity on the phone
- Person is determined to be deceased
Contacts reached
Includes contacts that could not be reached by phone that were reached by field teams.132,969
49%
of total contacts named
29,125
22%
of contacts reached
Contacts who did not complete interview
Not all those who are reached are interviewed immediately.Reasons for a delayed interview:- Person is hard of hearing, will be interviewed by an ESL interpreter in person
- Person has a language barrier, will be interviewed by the appropriate interpreter
- Person was busy, made an appointment for a later time
- Person did not consent to being interviewed
- Person refused to speak with interviewer
Contacts who completed interview
103,844
78%
of contacts reached
100,768
97%
of contacts who completed interview
Contacts not known to be tested or tested negative
Contacts are encouraged but not required to get tested. Contacts known to be tested and tested negative: 660 or 1% Contacts not known to be tested: 100108 or 96%Contacts known to be tested and tested positive
Contacts are asked by the interviewer if they have been tested for COVID.3,076
3%
of contacts who completed interview
Help us trace the virus: Answer the call
Additional ways you can help:
- Provide a valid, up-to-date phone number when you get tested, so we have the best contact information to reach you.
- Ensure your doctor has your current phone number on file if you get tested by your primary care provider.
- If you test positive, start thinking about the people you have had close contact with recently.
- If you get a call from (302) 446-4262, or your caller ID says DE PUBLICHEALTH, that’s a representative from the Delaware Contact Tracing Program calling to give you important information about your health. Please answer the call and take the time to speak with our contact tracers.
