| Childhood immunisation programmes are a major public health success story, with major causes of disease and death becoming uncommon due to vaccination. To prevent recurrence of these diseases in the community it is essential to achieve uptake rates (herd immunity) of 90-95%.
In September 2004 new vaccines were introduced to the childhood vaccine programme. The main changes were:
Oral polio vaccine was replaced with inactivated polio, which was incorporated into a combined preparation. This change was made possible by the eradication of wild polio infection in Europe. Inactivated polio vaccine carries no risk of vaccine-associated paralytic polio, which is a rare complication of receiving oral polio vaccine.
The whole-cell pertussis component was replaced with an acellular pertussis component which is as effective but causes fewer side effects.
The opportunity was taken to move to newer vaccines which contain no thiomersal.
Similar vaccines to these new ones have been used in other countries with very good results. Early indications here are that they are effective and that (mainly minor) side-effects have reduced, but they remain under special surveillance.
At present the national childhood immunisation routine schedule is as follows:
New Childhood Vaccine Schedule (from September 2004)
When to immunise |
Diseases Vaccine Protects Against
|
How it is Given |
2, 3 and 4 months old |
Diphtheria, tetanus, acellular pertussis, inactivated polio and Hib
Tradename: Pediacel
(DTaP/IPV/Hib)
Meningitis C
|
One injection
One injection |
Around 15 months old |
Measles, mumps and rubella
|
One injection |
3 to 5 years
ie Pre-school |
Diphtheria, tetanus, acellular pertussis and inactivated polio
Tradenames:
Repevax (dTaP/IPV)
Infanrix-Hib (DTaP/IPV)
Measles, mumps and rubella
|
One injection
One injection |
10 to 14 years old (and sometimes shortly after birth) |
Tuberculosis (BCG vaccine) |
Skin test, then one injection, if needed
|
14-18 years old
ie School-leaving |
Tetanus, diphtheria and inactivated polio
Tradename: Revaxis (Td/IPV)
MMR if have not had two previous doses |
One injection
One injection |
In addition to the routine schedule, children at higher risk are offered Hepatitis B vaccination and BCG shortly after birth.
In 2003, because of concerns about the rising incidence of Haemophilus influenza type b infections, an additional dose of Hib vaccine was offered to all children aged 6 months to 4 years as a one-off campaign. The effectiveness of this is being kept under review.
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