What is a gram-negative diplococcus?
Examples of gram-negative diplococci are Neisseria spp. and Moraxella catarrhalis. Examples of gram-positive diplococci are Streptococcus pneumoniae and Enterococcus spp. Presumably, diplococcus has been implicated in encephalitis lethargica.
Can Neisseria meningitidis cause pneumonia?
Background: Although Neisseria meningitidis is one of the major causes of meningitis, meningococcal pneumonia is the most common non-neurological organ disease caused by this pathogen.
What causes Diplococcus pneumonia?
It can be a cause of neonatal infections. Streptococcus pneumoniae is the main cause of community acquired pneumonia and meningitis in children and the elderly, and of sepsis in those infected with HIV….
|Streptococcus pneumoniae (Klein 1884) Chester 1901|
What is difference between gram-positive and negative?
Gram positive bacteria have a thick peptidoglycan layer and no outer lipid membrane whilst Gram negative bacteria have a thin peptidoglycan layer and have an outer lipid membrane.
How is Neisseria meningitidis treated?
Doctors treat meningococcal disease with a number of antibiotics….Depending on how serious the infection is, people with meningococcal disease may need other treatments, including:
- Breathing support.
- Medications to treat low blood pressure.
- Surgery to remove dead tissue.
- Wound care for parts of the body with damaged skin.
What causes meningococcal pneumonia?
Bacteria called Neisseria meningitidis cause meningococcal disease. About 1 in 10 people have these bacteria in the back of their nose and throat without being ill.
Is Neisseria meningitidis bacteria Gram positive or gram-negative?
N. meningitidis are gram-negative, coffee-bean shaped diplococci that may occur intracellularly or extracellularly in PMN leukocytes.
Is Haemophilus gram-negative?
Chapter 9: Identification and Characterization of Haemophilus influenzae. H. influenzae are small, pleomorphic, gram-negative bacilli or coccobacilli with random arrangements.
Is Neisseria meningitidis Gram positive or Gram negative?
N. meningitidis are gram-negative, coffee-bean shaped diplococci that may occur intracellularly or extracellularly in PMN leukocytes. N. meningitidis is a fastidious organism, which grows best at 35-37°C with ~5% CO2 (or in a candle-jar).