What is HBV (Human Hepatitis B Virus) known for affecting?

Human Hepatitis B Virus (HBV) is primarily known for its impact on the liver. This virus is a bloodborne pathogen and can lead to serious liver conditions, including hepatitis, cirrhosis, and liver cancer. When HBV infects a person, it can cause inflammation of the liver and impair its ability to function properly.

Understanding the primary effects of HBV is crucial for those in the esthetics field, as practitioners must be aware of bloodborne pathogens and their implications on health practices. Infection control procedures are vital in esthetics to prevent transmitting HBV and other bloodborne diseases.

The other options pertain to systems and areas of the body that are not directly affected by HBV. For instance, the respiratory system deals primarily with breathing and gas exchange, while the skin is related to dermatological issues, and the digestive system encompasses processes involved in digestion and nutrient absorption. Thus, these systems are not relevant to the direct effects of HBV.