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Appendix D4: Threshold Determinants for the Use of Community Containment Measures

Supplement D: Community Containment Measures, Including Non-Hospital Isolation and Quarantine

Public Health Guidance for Community-Level Preparedness and Response to Severe Acute Respiratory Syndrome (SARS) Version 2/3


Since 2004, there have not been any known cases of SARS reported anywhere in the world. The content in this Web site was developed for the 2003 SARS epidemic. But, some guidelines are still being used. Any new SARS updates will be posted on this Web site.



Epidemiologic parameters of the outbreak

Absolute number of cases

Rate of incident cases

Number of hospitalized cases

Number and percent of cases with no identified epidemiologic link

Morbidity (including disease severity) and mortality

Number of contacts under surveillance and/or quarantine

Healthcare resources

Hospital/facility bed capacity

Isolation/negative pressure room capacity

Staff resources

Patient/staff ratio

Number of isolated or quarantined staff

Availability of specifically trained specialists and ancillary staff

Equipment and supplies

Availability of ventilators

Availability of other respiratory equipment

Availability of personal protective equipment and other measures

Availability of therapeutic medications (SARS and non-SARS specific)

Public health resources

Investigator to case and contact ratios

Number of contacts under active surveillance

Number of contacts under quarantine

Ability to rapidly trace contacts (number of untraced/interviewed contacts)

Ability to implement and monitor quarantine (staff to contact ratio)

Ability to provide essential services (food, water, etc.)

Community cooperation, mobility and compliance

Degree of compliance with voluntary individual isolation

Degree of compliance with active surveillance and voluntary individual quarantine

Degree of movement out of the community

Degree of compliance with community-containment measures


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