What is the effectiveness rate of the HBV vaccine?

The effectiveness rate of the HBV (Hepatitis B virus) vaccine is approximately 95%. This means that after the complete vaccination series, about 95 out of 100 individuals develop adequate immunity against the virus. This high rate of effectiveness is crucial for preventing Hepatitis B infection, which can lead to serious liver diseases, including cirrhosis and liver cancer. Vaccination is a pivotal public health strategy, particularly for healthcare workers and individuals at higher risk of exposure to bloodborne pathogens.

The other options reflect lower effectiveness rates and do not represent the established efficacy of the vaccine. The vaccine's high level of effectiveness emphasizes the importance of vaccination in controlling the spread of Hepatitis B and protecting individuals from potential health complications associated with the virus.