Certain bacteria that cause pneumonia, notably Klebsiella pneumoniae and Streptococcus pneumoniae, exist as both an encapsulated and unencapsulated form. The encapsulated form of these bacteria are protected by a polysaccharide (short chain carbohydrate) capsule, which shields the bacteria from the host's immunilogical response, and confers virulence, or the ability to cause disease, to the encapsulated strains of these bacteria.

Pneumonia caused by an infection with an encapsulated bacteria.

No. Glucose is a polysaccharide (also called a sugar). Bacteria are living organisms that are classified as prokaryotes because they do not have a nucleus.

peptidoglycan~ it gives bacterial cell walls strength and firmness.

The live R bacteria had acquired polysaccharide capsule.