Infectious diseases are caused by viruses, bacteria, fungi and parasites. When microscopic organisms break through our natural defenses and make their way into our bodies, they can multiply and cause illness. In some cases, only one system or organ is affected. In others, the infection affects the entire body.

Many diverse and complicated factors contribute to the evolution and spread of infectious diseases including: global travel, new urbanism and immigration; health care practices and public health infrastructure; food production and preparation; the use and misuse of antibiotics and microbial adaptation; and, human behaviour. All of these factors make us vulnerable to existing and emerging infections caused by microorganisms sharing diverse and changing environments.

It is imperative that research and development in the area of infectious disease continue. The Canadian Foundation for Infectious Diseases is dedicated to raising funds to aid identification, prevention, control and treatment of infectious diseases.

© 2008 CFID.