Which of the following viral diseases showed its deadly out burst in China in 2003 ?

Options

A. Severe acute respiratory syndrome.
B. Severe combined immuno deficiency.
C. Anthrax
D. Hepatitis

Explanation

To solve the question "Which of the following viral diseases showed its deadly outburst in China in 2003?", we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Identify the Question**: The question is asking for a viral disease that had a significant outbreak in China in the year 2003.

2. **Review the Options**: The options provided are:
- Option 1: Severe Acute Respiratory Syndrome (SARS)
- Option 2: Severe Combined Immunodeficiency
- Option 3: Anthrax
- Option 4: Hepatitis

3. **Analyze Option 1: Severe Acute Respiratory Syndrome (SARS)**:
- SARS is indeed a viral disease caused by the coronavirus.
- It first appeared in China in November 2002 and was identified by scientists in February 2003.
- It is known for its contagious nature and potential to cause severe respiratory illness.
- This matches the criteria of a deadly outbreak in China in 2003.

4. **Analyze Option 2: Severe Combined Immunodeficiency**:
- This is a genetic disorder, not a viral disease.
- It was first identified in 1971 and does not relate to an outbreak in 2003.
- Therefore, this option is incorrect.

5. **Analyze Option 3: Anthrax**:
- Anthrax is caused by the bacterium Bacillus anthracis, not a virus.
- It is not a viral disease and does not fit the criteria of the question.
- Hence, this option is also incorrect.

6. **Analyze Option 4: Hepatitis**:
- Hepatitis is a viral infection caused by different viruses (Hepatitis A, B, and C).
- However, these viruses were discovered much earlier than 2003 and do not specifically relate to an outbreak in China in that year.
- Therefore, this option is incorrect.

7. **Conclusion**: After analyzing all options, the only viral disease that had a significant outbreak in China in 2003 is **Severe Acute Respiratory Syndrome (SARS)**.

### Final Answer:
The correct answer is **Option 1: Severe Acute Respiratory Syndrome (SARS)**.

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