Vaccination
- DTaP is a vaccine that helps children younger than age 7 develop immunity to three deadly diseases caused by bacteria: diphtheria, tetanus, and whooping cough (pertussis)
- Tdap is a booster immunization that offers continued protection from those diseases for adolescents and adults.
- If there is an increased risk of pertussis in a healthcare setting evidenced by documented or suspected healthcare-associated transmission of pertussis, revaccination of healthcare personnel with Tdap vaccine may be considered.
Factors For Revaccination
- Vaccinating healthcare personnel with Tdap is not a substitute for infection prevention and control measures, including post-exposure antimicrobial prophylaxis.
- There is no supportive evidence that additional Tdap doses would prevent pertussis disease and transmission in a healthcare setting.
- Because infants are at greatest risk for severe or fatal pertussis, healthcare personnel who work with infants or pregnant women should be prioritized for revaccination, if implemented.
Duration of protection
- Vaccine effectiveness studies suggest the duration of protection against pertussis afforded by Tdap vaccination in adolescents is less than 4 years but is not well defined in adults; therefore the optimal interval between Tdap doses is not known.
- a booster dose of pertussis containing vaccine is recommended for pregnant women (> 32 weeks gestation) and healthcare worker contacts who have not received a dose of pertussis containing vaccine in the preceding 5 years and no Td-IPV in the preceding month.
- Although licensed for a single dose, it is anticipated that for continued protection from pertussis, additional doses will be required periodically, possibly up to every 10 years.
Effectiveness
- Tdap vaccination of health care workers does not obviate the need for postexposure antibiotic prophylaxis.
Against Re-vaccination
- Currently, NHS UK does not recommend proactive vaccination of health due to the limited supplies of the vaccine
References:
- National Antibiotic Guideline 2014
- CASE INVESTIGATION AND OUTBREAK MANAGEMENT FOR HEALTHCARE PERSONNEL: PERTUSSIS 2010
- https://www.cdc.gov/vaccines/vpd/pertussis/tdap-revac-hcp.html
- http://www.webmd.com/children/vaccines/dtap-and-tdap-vaccines#1
- Pertussis Vaccination of Health Care Workers. ACOEM Medical Center Occupational Health Section Task Force on Pertussis Vaccination of Health Care Worker, 2011
Post a Comment