Review of the legislation managing the Welsh crustacean fisheries »The crustacean fisheries are the mainstay of the Welsh fishing industry, with £3.8 million worth of crustaceans landed into Wales in 2012.Learn more »
First Minister news conference
First Minister Carwyn Jones has held a press conference following the outcome of the Scottish Referendum result.
- Extra Safe Routes in Communities funding for Bridgend schools
- Ground-breaking North Wales clothing export centre opened
- First Minister news conference
In this section
- Business and economy
- Children and young people
- Culture and sport
- Education and skills
- Environment and countryside
- Equality and diversity
- Health and social care
- Inappropriate admissions guidance
- Draft guidance on housing association board member remuneration
- Smoke-free private vehicles carrying children
- Reservoir Safety in Wales: Consultation on the Commencement of Schedule 4 to the Flood and Water Management Act 2010
- Amending the Environmental Damage (Prevention and Remediation) Regulations 2009 to transpose Article 38 of the Offshore Safety Directive
- Devolution, Democracy and Delivery White Paper – Reforming Local Government
Featured consultation »Draft guidance on notifiable event for registered social landlords
24 days left
Section highlightHousing (Wales) Act 2014The Act introduces significant improvements across the housing sector to ensure that people have access to a decent, affordable home and better housing-related services.
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
Upcoming calendar »
See the schedule for all statistics and research releases.View upcoming calendar »
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.