Causative organisms responsible for Moniliasis: (Solved MCQ)

Causative organisms responsible for Moniliasis:

A. Candida Albicans

B. Tinea cruris

C. Staphylococcus aureus

D. Gonococcus

Correct answer:  A. Candida Albicans

Explanation:

Moniliasis is another name for candidiasis, a fungal infection primarily affecting mucous membranes, skin, or nails. The causative organisms are mainly yeast-like fungi of the genus Candida.

Main causative organisms:

  1. Candida albicans
    • Most common species causing moniliasis.
    • Normally part of human microbiota (mouth, gut, vagina) but can cause infection when immunity is low or microbial balance is disturbed.
  2. Candida glabrata
    • Less common, often seen in older adults or immunocompromised patients.
  3. Candida tropicalis
    • Occurs mainly in immunocompromised individuals.
  4. Candida parapsilosis
    • Associated with skin and nail infections; sometimes hospital-acquired.
  5. Candida krusei
    • Rare; often resistant to some antifungal drugs.

Summary:

  • Primary agent: Candida albicans
  • Other species: C. glabrata, C. tropicalis, C. parapsilosis, C. krusei

Other Options Details

Here’s a detailed description of each option:


A. Candida albicans

  • Type: Fungus (yeast)
  • Common Infections: Candidiasis (oral thrush, vaginal yeast infection, cutaneous candidiasis)
  • Characteristics: Normally part of human microbiota; overgrowth occurs when immunity is weakened or after antibiotics.
  • Symptoms: White, curdy discharge in vaginal infection; itching and redness in skin infections.

B. Tinea cruris

  • Type: Fungal infection (dermatophyte)
  • Common Name: “Jock itch”
  • Location: Groin, inner thighs, buttocks
  • Symptoms: Red, itchy, ring-shaped rash; scaling and sometimes burning sensation.
  • Cause: Trichophyton species (fungi)
  • Transmission: Direct skin-to-skin contact or via contaminated clothing.

C. Staphylococcus aureus

  • Type: Bacterium (Gram-positive cocci)
  • Common Infections: Skin infections (boils, abscesses), wound infections, sometimes systemic infections like sepsis.
  • Characteristics: Can produce toxins; may be resistant to antibiotics (MRSA strains).
  • Transmission: Skin contact, contaminated surfaces, or nasal carriage.

D. Gonococcus (Neisseria gonorrhoeae)

  • Type: Bacterium (Gram-negative diplococcus)
  • Common Infections: Gonorrhea (sexually transmitted infection)
  • Symptoms: Urethral discharge, painful urination, pelvic inflammatory disease in females, sometimes asymptomatic.
  • Transmission: Sexual contact.
  • Complications: Infertility, disseminated gonococcal infection if untreated.

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Writer: Vandita Singh, Lucknow (GS India Nursing Group

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