When the department receives a report under this chapter or
acts on other reliable information that a person is infected
with a disease, illness, or heath condition that may be a
potential cause of a public health disaster, the department
shall identify all individuals reasonably believed to have
been exposed to the disease, illness, or health condition and
shall investigate all such cases for sources of infection and
ensure that such cases are subject to proper control measures.
Any hospital, health care provider, or other person may
provide information, interviews, reports, statements,
memoranda, records, or other data related to the condition and
treatment of any individual if not otherwise prohibited by the
federal Health Insurance Portability and Accountability Act of
1996, Pub. L. No. 104-191, to the department to be used for
the limited purpose of determining whether a public health
disaster exists.