With the increase in at-home COVID-19 testing, Mercyhurst is no longer updating this page, as of June 6, 2022. Historical data is available below.

Archived Data

Important Definitions

Positive Case

A positive case refers to a person who currently meets the case criteria adopted by the CDC for the diagnosis of COVID-19.

Campus Exposure

Campus Exposure will be determined to have occurred when an individual with a Probable or Confirmed case was physically present on a university campus or in a university-occupied building within two days prior to illness onset (or, for asymptomatic individuals, two days prior to positive specimen collection). Mercyhurst reports any cases suspected to be positive to the Erie County Department of Health.

Close Contact

A close contact is defined as any individual who was within 6 feet or less of an infected person (Identified, Probable, or Confirmed) for at least 15 minutes starting from 2 days before illness onset (or, for asymptomatic individuals, 2 days prior to positive specimen collection) until the time the individual is isolated. It may also include an individual who had unprotected direct contact with infectious secretions or excretions of the person with Confirmed COVID-19 in the same time periods listed above. Close or direct contacts will be considered “exposed”. Presence or absence of mask is not determinative of status as a Close Contact. Additional analysis or factors may be used to determine close contacts in accordance with authoritative sources and guidance. 


Isolation keeps someone who is currently ill with COVID-19, or someone who tested positive for it even though no symptoms are present, away from others even in their own home. It serves much of the same function as Quarantine. The time frame for remaining in isolation is determined by current CDC guidance on minimum number of required isolation days and how the continued presence of fever and other symptoms may lengthen the isolation period.  People who are severely ill or have weakened immune systems may need to compete a longer isolation period. 


Quarantine refers to the practice of separating individuals who have had close contact with someone with COVID-19 to determine whether they develop symptoms or test positive for the disease. Quarantine also reduces the risk of spreading the disease. The time frame for quarantine is determined by assessing the last day of exposure to a patient with COVID-19 to ensure that the contact does not get sick themselves and spread the virus to others. Length of Quarantine will be consistent with Erie County Department of Health policy and guidance.

Important Note

The information on this page focuses on active positive cases involving a campus exposure that have been directly reported to the university or have been identified through contact tracing or linkage of students/employees to community testing resources. All data above represents the best information known at the time of posting. The information provided should not be relied on to determine risk of exposure on campus at any given time, as asymptomatic cases are common, accurate reporting requires dependence on self-reporting, and the data is backwards-facing for a period of time that has already passed. Active positive cases involving a campus exposure are being managed in accordance with the university's policies and procedures; for more information, please review our Policies and Procedures webpage. At any given time, Mercyhurst employees might be quarantining off campus upon advice from their own medical providers or as required under university policy. 

Contact Us

The COVID-19 Response Team