Which of the following STD and its causative agent is not correctly matched ?

Options

A. Genital warts : Haemophilus ducrei
B. Syphilis - Treponema pallidum
C. Genital herpes : Type II Herpes simplex virus ( HSV-2)
D. Trichomoniasis - Trichomonas vaginalis

Answer

To determine which STD and its causative agent is not correctly matched, we can follow these steps:

### Step 1: Understand the Types of STDs
- STDs (Sexually Transmitted Diseases) can be classified into two main categories: bacterial STDs and viral STDs.

### Step 2: Identify Common Bacterial STDs
- Examples of bacterial STDs include:
- **Syphilis**: Caused by *Treponema pallidum*.
- **Gonorrhea**: Caused by *Neisseria gonorrhoeae*.
- **Trichomoniasis**: Caused by *Trichomonas vaginalis*.

### Step 3: Identify Common Viral STDs
- Examples of viral STDs include:
- **HIV**: Human Immunodeficiency Virus.
- **Genital Herpes**: Caused by the herpes simplex virus.
- **Hepatitis B**: Caused by the Hepatitis B virus.
- **Genital Warts**: Caused by the Human Papillomavirus (HPV).

### Step 4: Analyze the Given Options
- We need to look at the options provided in the question to see which STD is incorrectly matched with its causative agent.
- From the information given:
- **Genital Warts**: Correctly matched with Human Papillomavirus (HPV).
- **Syphilis**: Correctly matched with *Treponema pallidum*.
- **Genital Herpes**: Correctly matched with Herpes Simplex Virus.
- **Trichomoniasis**: Correctly matched with *Trichomonas vaginalis*.

### Step 5: Identify the Incorrect Match
- The question mentions "haemophilus ducreyi," which is the causative agent for **Chancroid**, not a common STD listed in the options.
- Therefore, if any option incorrectly matches an STD with its causative agent, it would be the one that includes "haemophilus ducreyi" as it does not correspond to the other STDs listed.

### Conclusion
The STD and its causative agent that is not correctly matched is the one associated with "haemophilus ducreyi," as it is not a match for the common STDs listed in the question.

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