dTap booster vaccination of health care workers (HC dTap)

This study is focused on a booster vaccination for healthcare workers. The diseases being looked at are diphtheria, tetanus, and whooping cough (pertussis). Diphtheria is a serious infection that can cause breathing problems, heart failure, and nerve damage. Tetanus, often called lockjaw, affects the nervous system, leading to painful muscle spasms and can be life-threatening. Whooping cough is a highly contagious respiratory infection that causes severe coughing fits, especially dangerous for babies and young children.

The vaccine used in this study is a standard, approved booster shot called Triaxis. It helps your body create protection against these diseases by introducing small, safe parts of the bacteria that cause them. This study is considered a 'Phase IV' study, which means the vaccine is already approved and in general use. Researchers are now looking closer at how well it works and how the body responds to it in a real-world setting, specifically in healthcare professionals who may be at a higher risk of exposure.

The main goal of the study is to measure the level of protection against whooping cough (pertussis) in healthcare workers, both before they receive the booster vaccine and about four weeks after. By checking the levels of specific protective substances in their blood (called antibodies), the researchers can understand how much immunity is present and how much it increases after the booster. This information is important for making sure healthcare workers have good protection, which in turn helps protect their patients.