Which of the following pathogens is considered a bloodborne pathogen?

The Hepatitis B virus is classified as a bloodborne pathogen because it is primarily transmitted through exposure to infected blood and certain bodily fluids. The virus can survive outside the body and poses a significant risk to healthcare workers and others who may come into contact with blood or contaminated surfaces. Hepatitis B can lead to serious liver disease, including chronic hepatitis and liver cancer, making it crucial for individuals at risk to take precautions to prevent transmission.

Conversely, the other pathogens listed—such as the influenza virus, Streptococcus bacteria, and norovirus—are not primarily transmitted through blood. The influenza virus spreads mainly through respiratory droplets, while Streptococcus bacteria can be transmitted through respiratory secretions and direct contact. Norovirus is primarily transmitted through contaminated food, water, or surfaces, leading to gastrointestinal illness. Understanding the mode of transmission for different pathogens is essential in addressing public health concerns and implementing proper infection control measures.