(Vax-Before-Travel News)

According to recent data published by the Japan Institute for Health Security (JIHS), Japan reported the most significant number of pertussis cases to date in 2025.

As of August 30, 2025, there have been a total of 72,448 pertussis cases reported in Japan this year.

Cases have been detected in all 47 Japanese prefectures, with Tokyo (5,846), Niigata (3,496), and Saitama (3,857) reporting the highest totals.

To help reduce these cases, the first round of pertussis routine immunization is administered three times for young children in Japan.

Furthermore, the JIHS recommends pre-arrival pertussis vaccination for individuals at risk, such as pregnant women and infants.

Unfortunately, the United States is confronting similar data.

Preliminary data show that more than six times as many cases were reported in 2024 compared to 2023.

However, the U.S. CDC reports that cases of pertussis have been trending downward since a peak in November 2024.

When planning a visit to Japan in 2025, the CDC advises travelers to be up to date with routine and travel vaccinations. This recommendation includes the Diphtheria-Tetanus-Pertussis vaccine.

AloJapan.com