The first virus to be cultured in human cells was

Options

A. Polio Virus
B. Dengue Virus
C. Influenza Virus
D. HIV.

Answer

**Step-by-Step Solution:**

1. **Understanding the Nature of Viruses**: Viruses are unique entities that lack metabolic processes and cannot reproduce on their own. They require a host cell to replicate and multiply.

2. **Historical Context**: Before the 1940s, culturing viruses in human cells was not possible due to the lack of understanding and techniques.

3. **Key Scientific Achievement**: In 1941, a significant breakthrough occurred when scientists, including John Anders, Frederick Robbins, and Thomas Weller, successfully cultured a virus in human cells.

4. **Identifying the Virus**: The virus they cultured was identified as the poliovirus, which is responsible for poliomyelitis (polio).

5. **Method of Culturing**: The poliovirus was cultured in human muscle and tissue, which means it was grown in a controlled laboratory setting but within the human cells, not in a standard lab medium.

6. **Conclusion**: The first virus to be cultured in human cells is the poliovirus.

**Final Answer**: The first virus to be cultured in human cells was the poliovirus.

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