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Haemophilus influenza b
Close (household) contact is defined as a person who resides with the index patient or who spent ≥4 hours with the index patient for at least five
of the seven days before the day of hospital admission of the index case
Household contacts
• Household with at least one contact <4 years who has not received an age-appropriate number of doses of Hib conjugate vaccine
• Household with a contact who is an immunocompromised child (<18 years), regardless of that child's Hib immunization status
Nursery Contact
For child-care and preschool contacts (regardless of age or vaccine status) when unimmunized or incompletely immunized children attend the
facility and two or more cases of Hib invasive disease have occurred among attendees within 60 days
Give chemoprophylaxis to index case if treated with regimens other than cefotaxime or ceftriaxone
For Contacts < 2 years not immunized: complete immunization
Suggested Treatment
Infection/Condition Comments
Preferred Alternative
Haemophilus influenza b Rifampicin PO
Close contacts
Children:
20mg/kg/day q24h for 4 days
Infants:
10mg/kg/day q24h for 4 days
HPP AMG Chemoprophylaxis 95
