Next stage of A55 multi-million pound tunnel scheme to begin
- Recycling still on the up in Wales
- Hi-tech engineering facility in Mid Wales opened by First Minister
Featured Article »Celebrating success in the creative and arts sectors in Wales
- Next stage of A55 multi-million pound tunnel scheme to begin
- A call for proposals on a migrant Roma strategy for Wales
- Draft Statutory Guidance on Multi-Agency Collaboration in respect of violence against women, domestic abuse and sexual violence
- A framework for managing the night time economy in Wales
- Charging guidance to Ofwat (the economic regulator of the water sector)
- Care and Support (Business Failure) (Wales) Regulations 2015 and the Care and Support (Provision of Health Services) (Wales) Regulations 2015, stemming from the Social Services and Well-being (Wales) Act 2014
- Draft statutory guidance on the National Training Framework on violence against women, domestic abuse and sexual violence
Section highlightThe Planning (Wales) Act 2015
The act puts in place delivery structures, processes and procedures to make Wales’ planning system fit for the 21st century.
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.
1st Supplementary Budget 2015-16 »
The 1st supplementary budget proposes a number of changes to the final budget for 2015-16, which was published in December 2014.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.