Of the viruses listed below, the most lethal is

Options

A. influenza
B. Ebola
C. measles
D. herpes simplex

Answer

To determine which virus among the listed options is the most lethal, we will analyze each virus based on its characteristics and the severity of the diseases they cause.

### Step-by-Step Solution:

1. **Identify the Viruses**: The viruses listed in the question are:
- Influenza
- Ebola
- Measles
- Herpes

2. **Analyze Each Virus**:
- **Influenza**: This virus causes the flu, which can lead to severe illness and complications, especially in vulnerable populations. However, it is generally treatable and has vaccines available.
- **Ebola**: This virus is known for causing Ebola Virus Disease (EVD), which has a high mortality rate, often exceeding 50% in outbreaks. Symptoms include fever, vomiting, diarrhea, and bleeding, leading to a very high risk of death.
- **Measles**: Measles is a highly contagious viral infection but is preventable through vaccination. While it can lead to serious complications, the mortality rate is lower compared to Ebola.
- **Herpes**: This virus causes herpes simplex infections, which are generally not lethal. While they can cause discomfort and complications, they are not considered lethal.

3. **Compare Lethality**:
- Among these viruses, Ebola is recognized for its high lethality and severe impact on health. The mortality rate associated with Ebola is significantly higher than that of the other viruses listed.

4. **Conclusion**: Based on the analysis, the most lethal virus among the options provided is **Ebola**.

### Final Answer:
The most lethal virus from the options listed is **Ebola** (Option 2).

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