Immunisation is the use of a vaccine to protect against disease. When a vaccine is given, the body's immune system is stimulated to produce memory cells and substances called antibodies which protect against future infections. Vaccines contain either:
- the live germ (bacteria or virus) which has been toned down (attenuated) so that usually it does not cause the disease or, if so, it is usually in a mild form, or
- the killed germ, or
- part(s) of the germ or things the germ produces.
Vaccines also contain small quantities of other substances to enable them to work properly.
The Routine Childhood Immunisation Schedule in UK (from September 2006)
| Vaccine |
Recommended age of administration |
| Diphtheria, tetanus, pertussis (DTP), Inactivated polio vaccine (IPV) and Haemophilus influenzae type b (Hib) - DTP/IPV/Hib, a single injection |
8 weeks |
| Pneumococcal conjugate vaccine (PCV) |
8 weeks |
| DTP/IPV/Hib and Meningococcal C vaccine (Men C) |
12 weeks |
| DTP/IPV/Hib, PCV and Men C |
16 weeks |
| Hib/Men C booster |
12 months |
| Measles, mumps & rubella (MMR) and PCV |
13 months |
| MMR - 2nd dose |
Any time after 1st dose as long as at least three months have elapsed, or one month if after 18 months old. Usually given with pre-school booster below |
| DTP/IPV |
Three years four months old |
| HPV |
12-13 years (girls only)* |
| Td/IPV |
13-18 years |
*There is also a catch-up programme in place for girls up to school leaving age.
BCG used to be offered to all children in secondary school, but as the pattern of disease has changed, this is no longer the case. Instead, the vaccine is offered to all babies and children who are thought to be at higher risk of catching the disease. In some areas, this will mean that all babies are offered the vaccine.
It is normal for parents to have concerns and questions about immunisation. There are very few reasons for withholding immunisation. They are usually temporary and include:
- if the child is unwell or has a fever on the day of immunisation, in which case the vaccination should be postponed
- if the child is taking any medicines that affect the immune system, including steroids or has a disease that affects the immune system
- if the child has an unstable neurological condition
Side-effects of immunisation include swelling or redness around the site of the injection, temperature or irritability.
Parents of children with special needs may have concerns relating to immunisation and their child's specific condition. Children who have certain specific conditions may be more at risk from childhood diseases and therefore immunisation is encouraged. Where the condition affects the immune system (e.g. Primary Immunodeficiencies) vaccination may not work very well and, in some cases, live vaccines may be dangerous. In such circumstances, vaccination should always be discussed with the child's paediatrician. It is always helpful for parents to discuss any concerns they may have regarding immunisations with their health visitor or general practitioner or with the paediatrician involved in the care and management of their child.
Medical text written June 2000 by Dr David Elliman and Dr Helen Bedford. Last updated March 2009 by Dr David Elliman, Consultant in Community Child Health, Islington Primary Care Trust, London, UK and Great Ormond Street Hospital, London, UK, Immunisation Co-ordinator, Islington Primary Care Trust and Dr Helen Bedford, Senior Lecturer, Centre for Paediatric Epidemiology and Biostatistics, Institute of Child Health, London, UK.
Further information on this and the Immunisation Programme can also be obtained from:
NHS Immunisation Information
Department of Health
Area 511, Wellington House
133-155 Waterloo Road
London
SE1 8UG
Fax: 020 7972 3989
Web: http://www.immunisation.nhs.uk
Group details last updated March 2009
The Health Promotion Agency for Northern Ireland
18 Ormeau Avenue
Belfast
BT2 8HS
Tel: 028 9031 1611
Web: http://www.healthpromotionagency.org.uk
Group details last updated January 2009.
Health Education Board Scotland
Woodburn House
Canaan Lane
Edinburgh
EH10 4SG
Tel: 0131 536 5500
Text: 0131 536 5503
Web: http://www.healthscotland.com
Group details last updated February 2009
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