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MeNZB vaccine and epidemic control: when do you stop vaccinating?
Belinda J Loring1, Nikki Turner, Helen Petousis-Harris
1Toi Te Ora - Public Health, Bay of Plenty District Health Board, Tauranga, New Zealand. bjloring@yahoo.com
Abstract:
New Zealand developed a strain-specific group B meningococcal vaccine to control an epidemic. Following a mass vaccination campaign of three doses to the population under 20 years of age, commencing in July 2004, the vaccine continued to be offered routinely as a four-dose schedule from 6 weeks of age. There is little international data on when to cease epidemic vaccination campaigns. The decision to stop using this vaccine needed to take into account a range of factors. These included epidemiology, vaccine effectiveness and duration of immunity, vaccine coverage, concomitant use with other vaccinations being added to the infant schedule, vaccine supply and cost-benefit criteria. This paper discusses these issues, along with the potential challenges for communication to both health professionals and the public.
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