Delivering Prudent Healthcare in Wales »Prudent healthcare principles ensure patients receive the most appropriate treatments to achieve mutually-agreed goals.Learn more »
Come and welcome Team Wales home!
The First Minister is urging the public to come and join the celebrations and give Team Wales the hero's welcome they deserve at a special Commonwealth Games homecoming event next week.
- Monmouth is first in county to benefit from superfast fibre broadband
- ‘Remember to worm your dog', says Chief Vet
- Come and welcome Team Wales home!
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- Children and young people
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- Education and skills
- Environment and countryside
- Equality and diversity
- Health and social care
- Draft Undertaking Gypsy and Traveller Accommodation Assessments guidance
- Draft Designing Gypsy and Traveller Sites in Wales guidance
- Draft Managing Gypsy and Traveller Sites in Wales guidance
- Reservoir Safety in Wales: Consultation on the Commencement of Schedule 4 to the Flood and Water Management Act 2010
- Strategic Environmental Assessment: Environmental Report, Ireland Wales cooperation Programme 2014-2020
- Agricultural Waste Call for Evidence
Featured consultation »Draft guidance on notifiable event for registered social landlords
41 days left
Section highlightThe Well-being of Future Generations (Wales) BillThe Bill strengthens existing governance arrangements for improving the well-being of Wales to ensure that present needs are met without compromising the ability of future generations to meet their own needs.
Legislative programme 2014 - 2015 »
Bills that the Welsh Government will bring forward in 2014/2015.Learn more »
Section highlightWales for Africa grant
The Wales for Africa grant supports projects that build mutually beneficial links between Wales and Sub-Saharan Africa.
1st Supplementary Budget 2014-15 »
The 1st Supplementary Budget proposes a number of changes to the Final Budget for 2014-15, which was published in December 2013.Learn more »
- Statistics & Research
What is immunisation?
Immunisation is a way of creating immunity to certain infections.
Immunisation uses vaccines that contain relatively harmless antigens (molecules) that come from, or are similar to, the micro-organisms that cause the diseases. Micro-organisms can be viruses, such as measles, or they can be bacteria such as tuberculosis.
Vaccines stimulate the immune system into reacting as if there were a real infection. The immune system then fights off the infection and remembers the organism so it has the ability to fight it off quickly if met again.
Unlike most drugs, vaccines are given to healthy people so that they and the general population are protected from disease. Low immunisation rates and outbreaks of disease pose significant threats to the health of people who have not been protected and remain non-immune.
After clean water, vaccination is the most effective public health intervention in the world for saving lives and promoting good health. The term vaccination originated from the procedure used to protect people with the first vaccine for smallpox, vaccinia.
Visit NHS Wales Direct (external link) for more information.