Energy Wales Statement »The energy system in Wales is on the threshold of great change driven by new energy, technology and low carbon energy transition objectives.Learn more »
£7.6m funding boost for children and young people’s mental health services in Wales
The Welsh Government will invest an extra £7.6m every year in mental health services for children and young people in Wales.
- Welsh coast helping to boost tourism
- Love your library, cherish your church, partial to your pub? Consultation to protect community facilities launched
- £7.6m funding boost for children and young people’s mental health services in Wales
Section highlightHistoric Environment (Wales) BillThe Bill will support the positive management of change in the Welsh historic environment.
Legislative programme 2014 - 2015 »
Bills that the Welsh Government will bring forward in 2014/2015.Learn more »
Section highlightTaxes in Wales
The devolution of some taxes to Wales from April 2018 provides us with the opportunity to reshape those taxes to better meet our circumstances and priorities.
Final Budget 2015-16 »
The amount of funding allocated to Welsh Government Departments for 2015-16 is £15·3bn.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.