When compared with standard-dose vaccine, high-dose influenza vaccine, which includes four times the antigen, reduced the risk for respiratory-related hospital admissions among nursing home residents aged 65 years and older, according to findings recently published in Lancet Respiratory Medicine.

According to researchers, “influenza is clinically the most important viral infection in older adults.” In the United States it affects 4 million adults aged 65 years and older and leads to more than $8 billion in medical costs each year.