Why Are Pneumococcal Pneumonia Infections So Dangerous in Nursing Homes

Why are pneumococcal pneumonia infections so dangerous in nursing homes?

A) There is a vaccine for protecting children against pneumococcal pneumonia but no vaccine available for protection of older adults.
B) There is no longer an antibiotic effective against the infection, and older adults are unable to fight the infection without medication.
C) This type of pneumonia causes permanent lung damage, and old people often have impaired lung function in the first place.
D) The immune system of older people is usually impaired, leaving them predisposed to more serious and potentially life-threatening pneumonia.
E) This question is misleading. Pneumococcal infections are not dangerous.