Contact Tracing Goals of Contact Tracing Rapidly identify all - - PowerPoint PPT Presentation

Contact Tracing

Florida Department of Health in Lee County

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Goals of Contact Tracing

• Rapidly identify all persons with close contact to a confirmed
• r probable COVID-19 positive case.
• Ensure all close contacts identified are notified and directed

to self-quarantine and monitor for symptoms.

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Department of Health

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• 1. Department of Health (DOH) is notified of a positive case.
• 2. DOH investigator interviews the case to determine the infectious

period and who they may have been in close contact with during the infectious period.

• 3. DOH investigator notifies all contacts of their exposure and instructs

them to quarantine for 14 days after their last date of exposure.

• 4. Quarantined contacts are monitored daily through phone or text

message to determine if they develop symptoms.

Steps of Contact Tracing

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Cases are considered infectious starting 48 hours before symptom

• nset and until:
• At least 10 days have passed since symptom onset and
• At least 24 hours have passed since resolution of fever without

the use of fever-reducing medications and

• Other symptoms have improved.

*If asymptomatic, use the date of the test instead of symptom

• nset.

Definitions: Infectious Period

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Confi

• nfirmed

ed COVID-19 19 Cas ases es First Da First Day of

• f

Infe nfectio ctious us Period eriod Posi

• sitive

ive Lab Lab Colle

• llection

ction Dat Date Las Last day day of

• f

Infe nfectio ctious us Period eriod Ret Return urn to

• Wor

Work

• 2
• 1

1 2 3 4 5 6 7 8 9 10 10 11 11 Asymptomatic Isolation Period

Symp Symptom Fr

• m Free

ee During During Infe Infect ctious ious Period Period

Infectious Period

Confi

• nfirmed

ed COVID-19 19 Cas ases es First Da First Day

• f
• f

Infe nfectio ctious us Period eriod Onset nset of

• f

Sy Symptoms ptoms Las Last day day of

• f

Infe nfectio ctious us Period eriod

Infec nfecti tiou

• us per

period i iod is 10 day days, as as l lon

• ng

g as as i it ha t has be been en 24 24 hou

• urs since

nce la last f t fever ever an and d sympt mptom

• ms hav

have e im impr prove

• ved.

d.

Ret Return urn to

• Wor

Work

• 2
• 1

1 2 3 4 5 6 7 8 9 10 10 11* 11* Symptomatic Isolation Period

Inf Infect ectious ious Perio Period is d is At At Lea Least 1 t 10 D 0 Days S ays Sin ince ce Sym Sympt ptoms St

• ms Started

arted

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• Contacts are considered exposed if they were less than 6 feet

from a positive case for more than 15 minutes during the infectious period.

• Brief interactions are less likely to result in transmission;

however, symptoms and the type of interaction (e.g., did the infected person cough directly into the face of the exposed individual) remain important.

Definitions: Exposure

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Visualization of Exposure

Infected traveler People exposed

Airplane example People sitting two rows from a sick person would be within 6 feet.

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Peop eople Exposed le Exposed to

• Confirm

nfirmed CO d COVI VID-19 19 Cases ses Dat Date of e of Exposur Exposure First Da First Day of

• f

Quarant Quarantine ine Las Last Day of Day of Quarant Quarantine ine Ret Return urn to

• Wor

Work

1 2 3 4 5 6 7 8 9 10 10 11 11 12 12 13 13 14 14 15 15

Incubation Period

Sym Symptom Fr

• m Free

ee Dur Durin ing Qu Quar arantin antine Pe Period riod

Quarantine Period

• Exposed contacts will need to quarantine for 14 days from the last date of their

exposure to a positive cases.

• Contacts can return to work/school after 14 days as long as they have remained

asymptomatic.

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Department of Health

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Department of Health Dashboard

Florida Department of Health dashboard is found on the FDOH COVID-19 website and has information regarding cases and health metrics that is updated daily