Australia is currently grappling with a diphtheria outbreak, having reported over 240 cases and a possible death linked to the disease. Health experts, including Katherine Gibney from the Doherty Institute, stress the importance of maintaining high vaccination rates to protect against preventable diseases. Diphtheria, tetanus, and whooping cough are covered in a combined vaccine, with booster shots recommended for children aged 11-13, pregnant women, and adults over 50 if their last dose was more than 10 years ago. Higher-risk areas in Australia include the Northern Territory and parts of Western Australia. Individuals can check their vaccination status through the Australian Immunisation Register, which has recorded vaccinations since 1996. With childhood vaccination rates declining since the COVID-19 pandemic, health officials warn that under-vaccination is a significant factor in the rise of diphtheria and other preventable diseases. Travelers are advised to consult travel doctors for vaccinations relevant to their destinations, especially in areas with known infectious disease outbreaks.