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The aim of this lesson: To be able to explain how the geographic concepts of diffusion by relocation and by expansion apply to the spread of diseases. To examine the application of the concept of barriers in attempts to limit the spread of diseases. To describe the factors that have enabled reduction in incidence of a disease. Added Feb 2012

A frightening look at how population plays a role in the spread of Ebola ... and what geographic factors have changed the spread of this outbreak.

Scientists who have mapped HIV's spread across Europe say holidaymakers infected abroad are largely to blame.

Annotated map of spread of Ebola

The aim of this lesson: To examine the geographic factors responsible for the incidence and spread of malaria. To evaluate the geographic impact of malaria at the local, national and international scales. To evaluate the management strategies that have been applied in any one country or region for malaria. Added March 2012

Globesity - Fat's New Frontier The world is getting very fat, very fast and now the obesity epidemic has spread from rich countries to poor and developing countries it is likely 1 billion people will be obese by 2030. In our special examination of arguably the world's number one health issue, Globesity - Fat's New Frontier, Foreign Correspondent visits the new obesity hotspots - Mexico, Brazil, China and India - where hundreds of millions are gripped by weight issues and associated diseases.

Schools, colleges and cinemas in the Indian city of Mumbai have temporarily closed in a bid to limit the spread of the H1N1 virus.

The government must map the spread of swine flu more accurately in order to predict the number of people who are likely to die from it, scientists say.

Senior doctors today published a report warning that climate change is the biggest threat to global health of the 21st century. Rising global temperatures would have a catastrophic effect on human health, the doctors said, and patterns of infection would change, with insect-borne diseases such as malaria and dengue fever spreading more easily.

National public health bodies are co-ordinating their work to prevent the spread of a new swine flu virus, the World Health Organisation says.

Overview of geographic factors contributing to spread of disase