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Published on: February 23, 2014
[Serious invasive pneumococcal disease in young children: the importance of vaccination]
L M Haveman1, S P M Geelen, E A M Sanders
1Afd. Kindergeneeskunde, Wilhelmina Kinderziekenhuis/Universitair Medisch Centrum Utrecht, Lundlaan 6, 3508 AB Utrecht.
Insights
Invasive pneumococcal disease affects young children, with a 7-valent conjugate vaccine showing effectiveness in infants. This vaccine is recommended for infants and high-risk children.
Area of Science:
- Pediatrics
- Infectious Diseases
- Vaccinology
Background:
- Invasive pneumococcal disease (IPD) is a significant cause of morbidity and mortality in young children.
- The 23-valent pneumococcal polysaccharide vaccine is not effective in children under two years of age, the primary demographic affected by IPD.
Observation:
- Three cases of IPD in infants are presented: pneumococcal sepsis with hemolytic uremic syndrome, fatal pneumococcal sepsis/meningitis, and pneumococcal cellulitis.
- Two of the three affected children were under one year of age, highlighting the vulnerability of this age group.
Findings:
- The 7-valent pneumococcal conjugate vaccine (PCV7) has been registered and demonstrated effectiveness in protecting infants and children against IPD.
- The Health Council of the Netherlands recommended the inclusion of PCV7 in the routine infant vaccination schedule.
Implications:
- Widespread infant vaccination with PCV7 can significantly reduce the burden of IPD in young children.
- In the absence of universal vaccination, PCV7 is recommended for infants and children at high risk for invasive pneumococcal disease.
Abstract:
In three children with fever, two girls aged 8 and almost 10 months and one boy aged 5 months, invasive pneumococcal disease was present. The youngest girl presented with pneumococcal sepsis which was complicated by haemolytic uraemic syndrome--she recovered--and the boy developed fulminant fatal pneumococcal sepsis/meningitis. The oldest girl was admitted for pneumococcal cellulitis and recovered. More than 80% of the cases of childhood invasive pneumococcal disease occur in children less than 2 years of age. However, the long available 23-valent pneumococcal polysaccharide vaccine is not effective in this age group. Recently, a 7-valent pneumococcal conjugate vaccine was registered in the Netherlands. This conjugate vaccine is effective in protecting infants and children from invasive pneumococcal disease. The Health Council of the Netherlands has recommended inclusion of the conjugate vaccine in the standard vaccine schedule. In the absence of a universal vaccination, the 7-valent pneumococcal conjugate vaccine is recommended for children at high risk of invasive disease.
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