Measles is the most frequent cause of vaccine-preventable childhood
deaths. Infants younger than the recommended age for vaccination are
susceptible to the disease, and in developing countries they have a
high risk of complications and mortality. Vaccine coverage in excess
of 95% interrupts endemic transmission of measles in many countries,
but achievement of such coverage almost always requires coordinated
supplementary mass vaccination campaigns. There are substantial
health gains if countries improve measles vaccine coverage,
irrespective of whether or not high coverage is achieved; these
gains include much lower measles complication and case fatality
rates, long-term interepidemic duration, and possibly non-specific
improvements in survival of children. Investigation into the
cost-effectiveness of different strategies for measles control,
including mass campaigns, two-dose schedules, and young-infant
doses, would help countries to formulate control policies
appropriate to their setting. Pneumonia is the most common fatal
complication associated with measles, and at least 50% of
measles-related pneumonias are due to bacterial superinfection. WHO
has developed standard case management programmes for measles, but
there are several unresolved clinical issues, including optimum
indications for antibiotic treatment, the importance of intravenous
immunoglobulin, the role of viral coinfection, and the risk of
tuberculosis after measles. The priority in worldwide efforts to
control measles is to lend support to poor countries, helping them
to increase vaccine coverage and sustain improvements to vaccination
infrastructure, and to address technical issues with respect to
optimum vaccination schedules. Measles represents a specific
challenge, whereby partnerships between high-income and developing
nations would reduce child mortality in developing countries; such
partnerships are not without incentive for high-income countries,
since without them imported measles cannot be prevented.
Affiliations a Centre for
International Child Health, Department of Paediatrics, Royal Children's
Hospital, Melbourne, Australia. b Papua New Guinea
Institute of Medical Research, Goroka, Papua New Guinea.
* Correspondence to: Dr Trevor Duke, Centre for International
Child Health, Department of Paediatrics, Royal Children's Hospital, Parkville, 3052 Victoria,
Australia
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OF THE PUBLISHER, AND IS NOT TO BE CONSTRUED OR INTENDED AS PROVIDING MEDICAL OR
LEGAL ADVICE. THE DECISION WHETHER OR NOT TO VACCINATE IS AN IMPORTANT AND
COMPLEX ISSUE AND SHOULD BE MADE BY YOU, AND YOU ALONE, IN CONSULTATION WITH
YOUR HEALTH CARE PROVIDER.
"A foolish faith in authority is the worst enemy of truth."
-- Albert Einstein, letter to a friend, 1901
"I know of no safe depository of the ultimate powers of the society but the people themselves, and if we think them not enlightened enough to exercise control with a wholesome discretion, the remedy is not to take it from them, but to inform their discretion by education."
-- Thomas Jefferson, letter to William C. Jarvis, September 28, 1820
"What's the point of vaccination if it doesn't protect you from the unvaccinated?"
-- Sandy Gottstein
"Who gets to decide what the greater good is and how many will be sacrificed to it?"