1. a) Control of Case

   No general restrictions.

2. b) Control of Contacts

   Sexual contacts of Zika cases should be educated about the risk of sexual transmission of Zika virus.

3. c) General Measures

   Local health authorities shall inquire of all persons for whom an arbovirus test result is positive about recent blood donation. If a donation took place within two days to four weeks prior to onset of symptoms of donors with any suspected or known arbovirus infection, and 30 days prior to the onset of symptoms of donors with suspected West Nile virus infection, the local health authority shall notify the director of the donation facility of the donor's name, date of birth, sex, zip code, state of residence, date of donation, date of illness onset, and arboviral test results. Patient information, including test results received by donation facilities, shall be confidential.

4. d) Laboratory Reporting

   1. 1) Laboratories shall report to the local health authority patients who have a positive result on any laboratory test indicative of and specific for detecting acute arboviral infection and any positive laboratory test indicative of and specific for detecting arboviral infection in a blood donor, and organ or tissue recipient.
   2. 2) Laboratories shall hold arboviral specimens with a positive or equivocal IgM antibody reactive with the suspected agent for a minimum of 30 days. Upon request by the Department or local health authority, laboratories forward to the Department's laboratory clinical materials from patients who are suspected of having an acute arboviral infection.

(Source: Amended at 47 Ill. Reg. 18112, effective November 22, 2023)