pneumococcus

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Related to pneumococci: pneumococcal vaccine, pneumonia, staphylococci

pneumococcus

 [noo″mo-kok´us]
Streptococcus pneumoniae. adj., adj pneumococ´cal.

Strep·to·coc·cus pneu·mo·ni·ae

a species of gram-positive, lancet-shaped cocci and diplococci frequently occurring in chains; cells are readily lysed by bile salts. Virulent forms are enclosed in type-specific polysaccharide capsules, the basis for an effective vaccine. Normal inhabitants of the respiratory tract, and the most common cause of lobar pneumonia, they are the most common causative agents of meningitis, and pneumonia worldwide, and also cause otitis media, sinusitis, and other infections. It is the type species of the former genus Diplococcus.

pneumococcus

/pneu·mo·coc·cus/ (-kok´us) pl. pneumococ´ci   an individual organism of the species Streptococcus pneumoniae.

pneumococcus

(no͞o′mə-kŏk′əs, nyo͞o′-)
n. pl. pneumo·cocci (-kŏk′sī′, -kŏk′ī′)
A nonmotile, gram-positive bacterium (Streptococcus pneumoniae) that is the most common cause of bacterial pneumonia and is a cause of meningitis and other infectious diseases.

pneu′mo·coc′cal (-kŏk′əl) adj.

pneumococcus

[no̅o̅′mōkok′əs] pl. pneumococci
Etymology: Gk, pneumon + kokkos, berry
a gram-positive diplococcal bacterium of the species Streptococcus pneumoniae, the most common cause of bacterial pneumonia. More than 85 subtypes of this organism are known. A vaccine protective against 35 serotypes has been developed and is recommended for those over 65 years of age, those with a chronic lung disease, or those with human immunodeficiency virus infection. See also lobar pneumonia, pneumonia, Streptococcus pneumoniae.

Strep·to·coc·cus pneu·mo·ni·ae

(strep'tō-kok'ŭs nū-mō'nē-ē)
A bacterial species of gram-positive, lancet-shaped diplococci frequently occurring in pairs or chains. Virulent forms are enclosed in type-specific polysaccharide capsules. Normal inhabitants of the respiratory tract, and the cause of lobar pneumonia, otitis media, meningitis, sinusitis, and other infections.
Synonym(s): pneumococcus.

Pneumococcus (nōōˑ·mō·k·ks),

n a pathogenic bacterium often found in the lungs and upper respiratory tract.
Enlarge picture
Pneumococcus.

Strep·to·coc·cus pneu·mo·ni·ae

(strep'tō-kok'ŭs nū-mō'nē-ē)
A bacterial species of gram-positive, lancet-shaped diplococci frequently occurring in pairs or chains. Normal inhabitants of the respiratory tract, and the cause of lobar pneumonia, otitis media, meningitis, sinusitis, and other infections.
Synonym(s): pneumococcus.

pneumococcus

see streptococcuspneumoniae.

Patient discussion about pneumococcus

Q. What Is Streptococcal Pneumonia? I have heard that I might have streptococcal pneumonia. What exactly does that mean?

A. Streptococcal pneumonia is a disease caused by the streptoccus bacteria. It is one of the most common causes of pneumonia in healthy people. You can learn more about bacterial pneumonia here-
http://www.5min.com/Video/Pneumonia---Viral-or-Bacterial--9552

More discussions about pneumococcus
References in periodicals archive ?
A total of 305 pneumococci were isolated, comprising 27 serotypes plus nontypeable isolates (Figure 2).
Potent in vitro activity against all important respiratory pathogens, including pneumococci, [eth]-hemolytic streptococci, staphylococci, Hemophilus, Legionella, Mycoplasma, Moraxella and Chlamydophila
15) The relationship between antimicrobial resistance and exposure is complicated by the emergence of multiply-resistant pneumococci that may be selected by several classes of antibiotics.
Pneumococci are a major cause of ear infections and penicillin is usually the treatment.
A high (too numerous to count) and a low number (1 CFU per [micro]L) of pneumococci were added to the blood before isolation.
For example, EIP/ABCs data on antimicrobial resistance among pneumococci causing IPD helped shape treatment policy for pneumonia and meningitis (4,5).
Bacterial pneumonia caused by multi-drug resistant pneumococci has a significant impact on patient morbidity and mortality due to high treatment failure rates impacting hospitalization and other healthcare associated costs.
They found that while normal pneumococci were able to bind, enter and penetrate through human brain microvascular endothelial cells, mutant bacteria lacking the NanA protein -or those expressing only a truncated version of the protein - largely lost these abilities.
Pneumolysin, a 53-kDa, thiol-activated, protein toxin that is produced by almost all clinically relevant isolates of pneumococci, is considered to be one of the most important virulence factors of this micro-organism (extensively reviewed elsewhere (3-9)).
Multiple-drug-resistant pneumococci were first reported in South Africa in 1977.
The agent's rapid bactericidal effects appear to make short treatment durations feasible, and its mechanisms of action may avoid the induction of resistance, while maintaining good intrinsic activity against pneumococci, including those that are macrolide resistant," Dr.
We investigated pneumococcal susceptibility to meropenem in isolates from a tertiary children's hospital where pneumococci are commonly resistant to penicillin and cefotaxime.