For which of the following vaccines is no booster required?

Hepatitis A and Human Papillomavirus (HPV) vaccines do not require a booster dose as part of their immunization schedules. The Hepatitis A series consists of two doses administered six to twelve months apart, providing long-lasting immunity without the need for a booster. The HPV vaccine has a series of doses depending on the age at which vaccination begins, but it also does not require boosters once the series is completed.

In contrast, other vaccines like the Anthrax vaccine may require booster doses depending on risk factors such as exposure. Understanding the immunization schedules and recommendations for each vaccine is critical, as they can vary based on age, health conditions, and exposure risks.