tõhustusdoos

Tõhustusdoos, often translated as booster dose, refers to an additional dose of a vaccine given after the initial dose or series of doses has been completed. The purpose of a tõhustusdoos is to restore or enhance the immunity that may have waned over time since the primary vaccination. It helps to re-expose the immune system to the antigen, prompting a stronger and more robust immune response. This can lead to higher levels of antibodies and a longer-lasting protection against the targeted disease.

The need for a tõhustusdoos depends on several factors, including the type of vaccine, the disease it protects against, the age and health of the individual, and the duration of immunity provided by the initial vaccination. For some vaccines, immunity may naturally decline over months or years, making a booster necessary to maintain adequate protection. For other vaccines, the immune response might be very long-lasting, and boosters may not be required or recommended.

Tõhustusdoosid are a common strategy in many vaccination programs. They are used for various infectious diseases, including influenza, tetanus, pertussis, and in recent times, COVID-19. The timing of a tõhustusdoos is typically determined by scientific studies that assess the decline of immunity and the effectiveness of the booster in restoring protection. Public health authorities provide recommendations on who should receive booster doses and when, based on the latest scientific evidence and disease surveillance.