10 Questions
What is the typical size range of Neisseria bacteria?
0.6 - 1.0 um in diameter
Which of the following is not a species of Neisseria mentioned in the text?
Neisseria pneumoniae
What is the common name for Neisseria gonorrhoeae?
Gonococcus
Which of the following is not a common sign or symptom of gonorrhea in females?
Fever
What is the main way that gonorrhea can be transmitted from mother to infant?
Through the infected birth canal
What is the purpose of Crede's prophylaxis for infants?
To prevent blindness
What is the typical incubation period for gonorrhea?
2-8 days
What is the name of the condition where gonorrhea spreads to the epididymis in males?
Epididymitis
What is the most common symptom of gonorrhea in females?
Asymptomatic
What is the name of the condition where gonorrhea spreads to the joints in males?
Reactive arthritis
Study Notes
Neisseria Characteristics
- Gram-negative, diplococcus bacteria
- Kidney or bean-shaped, flattened or concave adjacent shape
- Approximately 0.6 – 1.0 μm in diameter
Neisseria Species
- Neisseria gonorrhoeae (also known as gonococcus)
- Neisseria meningitidis
Neisseria Gonorrhoeae (Gonococcus)
- Causes gonorrhoea, a sexually transmitted disease (STD)
- Produces acids and ferments glucose
- Affects infants, children, and adults
- Attacks mucous membranes in the genitourinary tract, rectum, throat, and eyes
- Transmitted through sexual interactions or from mother to infant during childbirth
- Can cause blindness in infants if left untreated
Preventing Blindness in Infants
- Crede's prophylaxis: 1-2 drops of 1% silver nitrate to prevent gonococcal ophthalmic neonaturum
Gonorrhoea
- Incubation period: 2-8 days
- Male gonorrhoea:
- Spreads to prostate glands and epididymis
- Signs and symptoms: difficulty urinating, yellow purulent discharge, epididymitis, urethritis, and reactive arthritis
- Female gonorrhoea:
- Spreads from paracervical glands to fallopian tubes and peritoneal cavity
- Signs and symptoms: usually asymptomatic, painful urination, abnormal vaginal bleeding, and pain during sex
Test your knowledge about Neisseria, a gram-negative diplococcus bacteria with kidney or bean-shaped appearance. Learn about species like Neisseria gonorrhoeae and Neisseria meningitides, their characteristics, and associated diseases.
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