World Health Day is celebrated every year on April 7, which is the anniversary of the founding of the World Health Organization in 1948.
The campaign invites everyone to focus on a single health challenge with global impact and it provides an opportunity to start collective action to protect people's health and well-being. This year the focus is on how good health can help aging men and women to lead full and productive lives and be resources for their families and communities.
Learn more about World Health Day by visiting the World Health Organization .
Information on preventative measures for lifelong good health, including immunizations for disease, is available at Health.mil .