Tetanus is a serious disease caused by bacteria that enter the body through cuts or wounds. Thanks to vaccines, cases in the U.S. have dropped significantly, but the disease still poses a threat, especially to older adults. Diphtheria, on the other hand, is less common due to widespread vaccination, but waning immunity means adults can still be at risk, especially when traveling to areas where the disease is more prevalent.

Vaccinations are crucial for protecting against tetanus and diphtheria. Studies have shown that while children tend to have protective antibodies, many adults lose this protection over time. In the U.S., only 47% of adults have full immunity to both diseases. Regular booster shots every 10 years help maintain immunity and prevent potential outbreaks.

While cases are rare in resource-rich countries like the U.S., tetanus and diphtheria are still prevalent in resource-limited nations. Over a million cases of tetanus occur worldwide annually. It's essential for travelers to these areas to ensure their vaccinations are up to date to prevent contracting and spreading these diseases.

Regular vaccinations are vital in maintaining immunity against these preventable diseases.