UA contract to study elderly immune systems

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TUCSON, Ariz. (AP) -- University of Arizona researchers armed with nearly $12 million will spend the next five years studying elderly immune systems.

Officials at the Tucson school say a contract with the National Institutes of Health is intended to help researchers gain a better understanding of why older adults seem to be more susceptible to certain infections.

UA researchers say that as we get older, there's a gradual decline in the body's ability to fight infections.

The college of medicine says it hopes to take what it learns from the study and build a healthy and robust community of older adults by greatly reducing deaths and illness from infections.