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Claudia Alvarado RN BSN Public Health Nurse Coordinator Department of Public Health Services. Pertussis Overview. Introduction . First recognized in the 16 th Century Caused by bacteria Bordetella Pertussis
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Public Health Nurse Coordinator
Department of Public Health Services
Highly contagious with a > 80% secondary attack
rate among susceptible persons in a households
Pertussis occurs at any age regardless of vaccine status
Vaccine immunity to pertussis wanes in 5-10 years, may be less with acellular vaccine (data very limited)
Infants <12 months:
Consider in Pertussis even if patient is immunized
Contact groups: i.e. household, friends, school, car/bus religious groups, sports teams, social events, and…. Healthcare
HIGH RISK CONTACTS: Use more inclusive criteria for definition of close contact
Protect infants by:
Protecting from known/suspect cases
Liberal use of term close contact and PEP for infants and persons around them
Vaccinating “around” infant
Clinical/Outpatient settings: Most individuals in waiting rooms etc. with a Pertussis case should not be considered close contacts. Persons who had direct contact with respiratory secretions from the case or intense close contact may be considered for PEP
Facilities/Institutions: (i.e. Nursing Homes and institutions for developmentally disabled):
Residents have multiple sources of exposure and increased risk of complications
More inclusive interpretation of “close” contacts may be indicated.
Hospital setting: Determination of close contact should be more inclusive in settings such as a neonatal intensive care unit, newborn nursery, or infant ward, because infants are at risk for developing severe disease
Year Reported Cases*
*Total reported cases include those with unknown age http://www.cdc.gov/pertussis/surv-reporting.html
States with incidence of pertussis the same or higher than the national incidence (as of September 20, 2012), which is 9.3/100,000 personfrom: http://www.cdc.gov/pertussis/outbreaks.html