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Pneumococcal pneumonia is a type of bacterial pneumonia that is caused by Streptococcus pneumoniae (pneumococcus). [1] It is the most common bacterial pneumonia found in adults, the most common type of community-acquired pneumonia , and one of the common types of pneumococcal infection .
Pneumococcal infection is an infection caused by the bacterium Streptococcus pneumoniae. [ 1 ] S. pneumoniae is a common member of the bacterial flora colonizing the nose and throat of 5–10% of healthy adults and 20–40% of healthy children. [ 2 ]
Quellung is the German word for "swelling" and describes the microscopic appearance of pneumococcal or other bacterial capsules after their polysaccharide antigen has combined with a specific antibody. The antibody usually comes from serum taken from an immunized laboratory animal. As a result of this combination, and precipitation of the large ...
Merck competes with Pfizer in the U.S. market for pneumococcal vaccines and hopes to gain a majority share with the launch of Capvaxive. Pfizer's shot, Prevnar 20, was approved in 2021 for use in ...
Resistant pneumococcal strains are called penicillin-resistant pneumococci (PRP), [51] penicillin-resistant Streptococcus pneumoniae (PRSP), [52] Streptococcus pneumoniae penicillin resistant (SPPR) [53] or drug-resistant Strepotococcus pneumoniae (DRSP). In 2015, in the US, there were an estimated 30,000 cases, and in 30% of them the strains ...
Atypical bacteria causing pneumonia are Coxiella burnetii, Chlamydophila pneumoniae (), Mycoplasma pneumoniae (), and Legionella pneumophila.. The term "atypical" does not relate to how commonly these organisms cause pneumonia, how well it responds to common antibiotics or how typical the symptoms are; it refers instead to the fact that these organisms have atypical or absent cell wall ...
Pneumonia is an inflammatory condition of the lung primarily affecting the small air sacs known as alveoli. [3] [14] Symptoms typically include some combination of productive or dry cough, chest pain, fever, and difficulty breathing. [15]
Prevnar vaccine. Prevnar 20 (PCV20) is the third version of a vaccine produced by the Wyeth subsidiary of Pfizer.In April 2023, the FDA approved Prevnar 20 for the prevention of invasive disease caused by the 20 different serotypes of S. pneumoniae contained in the vaccine (serotypes 1, 3, 4, 5, 6A, 6B, 7F, 8, 9V, 10A, 11A, 12F, 14, 15B, 18C, 19A, 19F, 22F, 23F, and 33F) for individuals 6 ...