Trends in the burden of infectious disease hospitalizations among the elderly in the last decade

Prevalence and prognostic influence of bacterial pyuria in elderly patients with pneumonia: A retrospective study

“…The decreased immune function of older adults allows them to be complicated with other infections. Urinary tract infections (UTI) are the second most common form of infectious disease (after pneumonia) in the elderly population . Although the overall mortality rate of pyelonephritis, a typical UTI, is approximately 0.3%, elderly patients with pyelonephritis are susceptible to bacteremia, the mortality rate of which is reported to be as high as 7.5–30% .…”

“…Urinary tract infections (UTI) are the second most common form of infectious disease (after pneumonia) in the elderly population. 1 Although the overall mortality rate of pyelonephritis, a typical UTI, is approximately 0.3%, elderly patients with pyelonephritis are susceptible to bacteremia, the mortality rate of which is reported to be as high as 7.5-30%. 2 UTI can therefore be life-threatening if physicians do not diagnose them promptly and provide appropriate treatment to elderly patients with pneumonia.…”

Immunosenescence: implications for vaccination programs in the elderly

“…[6][7][8] Infectious diseases account for roughly 20% of hospitalizations in the elderly. 9 Vaccines are the most successful tools we have in preventing infectious disease. Four vaccines are currently recommended for use in the elderly: the seasonal influenza vaccine, the pneumococcal vaccine, the tetanus-diphtheria-pertussis vaccine, and the vaccine to prevent shingles, which is caused by reactivation of Herpes zoster virus ( Table 1).…”

“…Despite reasonably high vaccination rates in the elderly (61.3% influenza, 59.9% pneumococcal), influenza and pneumonia infections are still associated with serious adverse events leading to hospitalization, debilitating complications, and mortality in the elderly. 9,12,13 Seasonal influenza causes moderate illness in healthy adults that is generally resolved within 2 weeks; however, children, those with comorbidities, and the elderly are at increased risk of complications (ie, pneumonia, bronchitis, and/or sinus infection) that may result in hospitalization and mortality. Consequently, in many countries influenza vaccination efforts focus on children (aged 6 months-17 years) and the elderly (aged $65 years).…”

Adult Infectious Disease Consultation over a 10-Year Period in a Community-Base Teaching Hospital

“…Infectious Disease (ID) remained a common cause of hospitalization and ambulatory visits in the United States [1] [2]. There has been an increasing trend of hospitalization due to ID, especially among older adults [3]- [5]). A study published in 2009 [3] showed approximately 4.5 million hospital days and $865 billion in hospital charges associated with primary infectious disease management.…”