Section 690.441  Haemophilus Influenzae, Invasive Disease (Reportable by telephone, facsimile, or electronically, within 24 hours)

a)         Control of Case

No specific restrictions.

b)         Control of Contacts

1)         No specific restrictions.

2)         When a case of Haemophilus influenzae type b occurs, chemoprophylaxis shall be considered for all household contacts in households in which there is a child less than 12 months of age (other than the index case) who has not received the primary series of Hib conjugate vaccine; or for all household contacts in households with a child less than four years of age who is inadequately immunized against Haemophilus influenzae type b; or for all household contacts in households with an immunocompromised child regardless of immunization status. 

3)         When two or more cases of Haemophilus influenzae type b invasive disease occur in a child care facility within 60 days and unimmunized or incompletely immunized children attend the child care facility, administration of chemoprophylaxis to all attendees and staff having sufficient contact is indicated.

c)         Laboratory Reporting

1)         Laboratories shall report to the local health authority when Haemophilus influenzae (any type) has been cultured from a normally sterile site or patients who have a positive result on any other laboratory test indicative of and specific for detecting invasive Haemophilus influenzae (any type).

2)         Laboratories shall forward clinical materials from a normally sterile site that are positive for Haemophilus influenzae (any type) to the Department's laboratory.

(Source:  Amended at 48 Ill. Reg. 4098, effective February 27, 2024)