Which virus is known as the DNA virus that attacks the liver?

The correct answer is HBV, which stands for Hepatitis B Virus. This virus is indeed a DNA virus and is specifically known for its impact on the liver, leading to conditions such as hepatitis and potentially chronic liver disease, cirrhosis, and liver cancer.

Hepatitis B is transmitted through contact with infectious bodily fluids, and it primarily affects liver function, making it a significant public health concern. In the broader context, knowing that HBV is a DNA virus distinguishes it from other viruses that may also affect the liver but do not have the same genetic material structure.

In comparison, HCV (Hepatitis C Virus) is an RNA virus, HIV (Human Immunodeficiency Virus) is also an RNA virus and affects the immune system primarily, while HPV (Human Papillomavirus) is a DNA virus but is primarily associated with causing warts and certain types of cancer, notably cervical cancer, rather than liver-related diseases. Understanding these distinctions is crucial for recognizing the specific nature and impact of different viruses in medical and health-related fields.