Streptococcus pneumoniae infections caused

Streptococcus pneumoniae Infection with Streptococcus pneumoniae may cause both toxic liver damage and pneumococcal hepatitis with focal necroses, leading to the corresponding laboratory findings. In lobar pneumonia, jaundice (= biliary pneumonia) frequently occurs in the so-called grey hepatization stage. In addition to predominantly bacterial haemolytic jaundice, increased transaminases (20%) and cholestasis (10%) are found. The condition always regresses completely. A liver abscess induced by pneumococci is a rare event. (3-5, 9)... 

Benton KA, VanCott JL, Briles DE. Role of tumor necrosis factor alpha in the host response of mice to bacteremia caused by pneumolysin-deflcient Streptococcus pneumoniae. Infect Immun 1998 66(2) 839-842. 

A 28-year-old married woman with three children is prescribed bacampicillin (Spectrobid) for an upper respiratory infection caused by Streptococcus pneumoniae. W hat information would be important for you to obtain from this woman What special instructions would you give her because of her gender and age ... 

Meropenem (Merrem IV) inhibits syndiesis of die bacterial cell wall and causes die deadi of susceptible cells. This drug is used for intra-abdominal infections caused by Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, and odier susceptible organisms Meropenem also is effective against bacterial meningitis caused by Neisseria meningitidis, Streptococcus pneumoniae, and Hemophilus influenzae. 

Although viral infections are important causes of both otitis media and sinusitis, they are generally self-limiting. Bacterial infections m complicate viral illnesses, and are also primary causes of ear and sinus infections. Streptococcus pneumoniae and Haemophilus influenzae are the commonest bacterial pathogens. Amoxycillin is widely prescribed for these infections since it is microbiologically active, penetrates the middle ear, and sinuses, is well tolerated and has proved effective. 

Streptococcus pneumoniae remains the commonest cause of pneumonia and responds well to penicillin. In addition, a number of atypical infections may cause pneumonia and include Mycoplasma pneumoniae, Legionella pneumophila, psittacosis and occasionally Q fever. With psittacosis there may be a history of contact with parrots or budgerigars while Legionnaires disease has often been acquired during hotel holidays... 

Bacterial meningitis is the most common cause of CNS infections. An epidemiologic review of bacterial meningitis in 1995 revealed that Streptococcus pneumoniae (pneumococcus) was the most common pathogen (47%), followed by Neisseria... 

Streptococcus pneumoniae is the most common bacterial cause of community-acquired respiratory tract infections. S. pneumoniae causes approximately 3000 cases of meningitis, 50,000 cases of bacteremia, 500,000 cases of pneumonia, and over 1 million cases of otitis media each year. The increasing prevalence of drug-resistant S. pneumoniae has highlighted the need to prevent infection through vaccination. Both licensed pneumococcal vaccines are highly effective in preventing disease from the common S. pneumoniae serotypes that cause human disease. 

Acute complications of SCD include fever and infection (e.g., sepsis caused by encapsulated pathogens such as Streptococcus pneumoniae), stroke, acute... 

CNS infections may be caused by a variety of bacteria, fungi, viruses, and parasites. The most common causes of bacterial meningitis include Streptococcus pneumoniae, Neisseria meningitidis, Listeria monocytogenes, and Haemophilus influenzae. 

The Gram-positive bacterium Streptococcus pneumoniae is an important cause of respiratory tract infections, bacteremia, and meningitis. In this strain, the cell wall anchored pneumococcal surface protein A (PspA) has been demonstrated to bind lactoferrin [181]. PspA and closely related proteins in a variety of pneumococcal isolates are most likely involved in the sequestration of iron from lactoferrins, and finally contribute to the virulence of these bacteria. However, the means by which the pneumococcus acquires iron at the mucosal surface during invasive infection is not well understood at the molecular level [182],... 

Clotrimazole is an imidazole antifungal agent indicated for the treatment of fungal infections caused by Candida albicans. The administration of clotrimazole would be of no use in the treatment of infections caused by Chlamydia trachomatis, Neisseria gonorrhoea, Staphylcoccus aureus and Streptococcus pneumoniae. 

Skin and skin structure infections- Skin and skin structure infections, including abscesses, cellulitis, infected skin ulcers, and wound infections caused by S. aureus (including penicillinase-producing strains) Streptococcus pyogenes, group D streptococcus including . faecalis, Acinetobacter sp. including iA. calcoaceticus] Citrobactersp.] E. coli] Enterobacter cloacae, K. pneumoniae]... 

Levofloxacin (1), the levo-isomer or the (5)-enantiomer of ofloxacin, received FDA approval in 1996 (Fish, 2003 Hurst et al., 2002 Mascaretti, 2003 Norrby, 1999 North et al., 1998). The initial approval covered community-acquired pneumonia, acute bacterial exacerbation of chronic bronchitis, acute maxillary sinusitis, uncomplicated skin and skin structure infections, acute pyelonephritis, and complicated urinary tract infections (North et al., 1998). Four years later, the levofloxacin indication list grew to include community-acquired pneumonia caused by penicillin-resistant Streptococcus pneumoniae. In addition, in 2002, nosocomial (hospital-acquired) pneumonia caused by methicillin-susceptible Staphylococcus aureus, Pseudomonas aeruginosa, Serratia marcescens, Haemophilus influenzae, Kliebsella pneumoniae, and Escherichia coli was added (Hurst et al., 2002). Finally in 2004, LVX was approved as a post-exposure treatment for individuals exposed to Bacillus anthracis, the microbe that causes anthrax, via inhalation (FDA, 2004). 

The need for new antibiotics is driven by the recent rise in the incidence of resistance to commonly used antibiotics. The emergence of multiple-drug resistance to community-acquired infections, such as those caused by Streptococcus pneumoniae, is particularly alarming due to the ease of transmission [1-4], Recent reports show that methicillin-resistant Staphylococcus aureus, the common cause of hospital-acquired infections, has also moved into the community [5],... 

Bacillus coagulans and Bacillus dysenteriaeaxt two species of bacilli. Staphylococcus aureus is the bacterium that causes staphylococcal infection. Streptococcus pneumoniae (genus and species)... 

Tumour necrosis factor-a (TNFa) accumulates in the brain after trauma. This cytokine is known to be an important factor in delayed CNS damage. It was found that, in addition to its anti-NMDA effect, HU-211 causes up to 90% inhibition of the TNFa surge after closed head injury in rats [195], Bacterial and viral infections of the CNS are known to cause secretion of the TNFa as well as interleukin-1 and other cytokines which are involved in the inflammatory process and may cause secondary damage. Such infections may result in high mortality. It was found that rats infected with Streptococcus pneumoniae suffered less cerebral oedema on treatment with a combination of a suitable antibiotic with HU-211 than the antibiotic alone [196],... 

Qll Acute exacerbations of chronic bronchitis can be caused either by viral or bacterial infections. Production of thick, green sputum suggests Chandra has a bacterial infection. Common bacterial pathogens affecting the lung include Streptococcus pneumoniae and Haemophilus influenzae. It is recommended that COPD patients receive influenza vaccine each year pneumoccocal vaccine is also often recommended in chronic lung disease and may prevent recurrence of chest infection in the elderly. 

The streptococci are the other group of gram-positive cocci that cause ocular infections morphologically, they are arranged in chains. This group includes Streptococcus pneumoniae (morphologically seen as diplococci), which causes corneal ulcers and pediatric conjunctivitis. 

Some streptococci have developed a different mechanism of acquired resistance to penicillin drugs. These bacteria have altered transpeptidases (also known as penicillin-binding proteins) that no longer bind penicillin, and thus peptidoglycan synthesis is not disrupted. This mechanism of resistance is found in Streptococcus pneumoniae. Estimates of penicillin-resistant S. pneumoniae in the United States range from 25% to 66%, including strains recovered from ocular and periocular infections. Many isolates of penicillin-resistant S.pneumoniae also are resistant to the cephalosporins, macrolides, and the older fluoroquinolones. Use of alternative antibiotics such as vancomycin is necessary for infections caused by penicillin-resistant isolates. 

In addition to S. pneumoniae, the viridans group of streptococci is also developing resistance to penicillin through the same mechanism, altered penicillin-binding proteins. In contrast, resistance has not developed in Streptococcus pyogenes, and both penicillins G and V are antibiotics of choice for systemic infections caused by this organism. 

Because of its potential toxicity, vancomycin is reserved for serious infections in which less toxic antibiotics are ineffective or not tolerated. Generally, vancomycin is administered intravenously because of poor intestinal absorption. It is the drug of choice for treating infections caused by methicillin-resistant staphylococci and penicillin-resistant Streptococcus pneumoniae. Vancomycin has been used to treat enterococcal infections because of their resistance to the P-lactam antibiotics, but most enterococci are now also resistant to vancomycin. Oral administration of rancomycin is important for treatment of some gastrointestinal infections such as pseudomembranous colitis caused by C. difficile. 

Methicillin-resistant strains of Staphylococcus aureus and S. epidermidis and penicillin-resistant Streptococcus pneumoniae have been isolated from ocular infections. Therefore treatment of ocular infections caused by these organisms might require use of vancomycin for resolution. Vancomycin is also recommended for empiric intra-vitreal and topical therapy in bacterial endophthalmitis and for parenteral therapy in moderate to severe preseptal cellulitis (see Table 11-1). 

Clarithromycin is indicated for the treatment of mild to moderate upper and lower respiratory tract infections as well as skin infections caused by susceptible strains of Staphylococcus aureus, Streptococcus pyogenes, Streptococcus pneumoniae, H. influenzae, Legionella pneumophila, and Mycoplasma pneumoniae. The usual dosage is 250 to 500 mg twice a day for 7 to 14 days. 

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