Why is diphtheria rare for Americans?

The United States has a very high vaccination rate for diphtheria, which is why the disease is rare. The diphtheria vaccine is typically given as part of a combined vaccine, such as the DTaP vaccine, which also protects against tetanus and pertussis (whooping cough). The DTaP vaccine is very effective at preventing diphtheria, and it is recommended for all children in the United States.

In addition to vaccination, other factors that have contributed to the rarity of diphtheria in the United States include:

* Improved sanitation: Diphtheria is spread through contact with respiratory droplets from an infected person. Improved sanitation, such as access to clean water and soap, has helped to reduce the spread of diphtheria.

* Antibiotics: Antibiotics can be used to treat diphtheria. The early diagnosis and treatment of diphtheria can help to prevent serious complications and death.

As a result of these factors, diphtheria is now a very rare disease in the United States. However, it is important to continue to vaccinate children against diphtheria to prevent the disease from making a comeback.