Which one is not a symptom of Entamoeba histolytica infection

Options

A. Relapsing fever
B. Abdominal pain
C. Blood in stool
D. Irregular bowls.

Answer

To determine which symptom is not associated with an Entamoeba histolytica infection, we can follow these steps:

### Step 1: Understand the Organism
Entamoeba histolytica is an anaerobic parasite that primarily infects the human intestine, causing a disease known as amoebiasis or amoebic dysentery.

### Step 2: Identify Common Symptoms of Amoebiasis
Common symptoms associated with Entamoeba histolytica infection include:
- Bloody diarrhea (blood in stool)
- Abdominal pain
- Fatigue and weight loss
- Irregular bowel movements

### Step 3: Analyze the Options
The options provided are:
1. Relapsing fever
2. Abdominal pain
3. Blood in stool
4. Irregular bowels

### Step 4: Compare Symptoms with Options
- **Relapsing fever**: This symptom is not typically associated with Entamoeba histolytica infections. Instead, it is commonly linked to infections caused by the Plasmodium parasite, which causes malaria.
- **Abdominal pain**: This is a common symptom of amoebiasis.
- **Blood in stool**: This is also a common symptom of amoebiasis.
- **Irregular bowels**: This is another symptom associated with amoebiasis.

### Step 5: Conclusion
Based on the analysis, the symptom that is not associated with an Entamoeba histolytica infection is **relapsing fever**.

### Final Answer
**Relapsing fever** is not a symptom of Entamoeba histolytica infection.

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