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Japan's Measles Cases Surge, Eradication Status Threatened
8 May
Summary
- Measles cases in Japan have nearly quadrupled compared to last year.
- Vaccination rates have declined since the COVID-19 pandemic began.
- The cost of a single measles vaccine dose is approximately 10,000 yen.
Measles cases have surged in Japan, with nearly 300 reported by mid-April, marking the second-fastest pace in a decade. This alarming increase jeopardizes Japan's 2015 status as a measles elimination nation, as certified by the World Health Organization. The highly contagious virus, spread easily through airborne transmission, can cause severe illness and even death.
Experts theorize that returning travelers and tourists may have reintroduced the measles virus into the country. High population density areas, particularly Tokyo and its surrounding prefectures, have seen a significant number of cases, facilitating rapid spread.
Contributing factors to this resurgence include a decline in vaccination rates since the COVID-19 pandemic. The national vaccination coverage for the second dose has reportedly fallen below the necessary 95% for herd immunity. Furthermore, natural waning of immunity over time, without re-exposure to the virus, can leave the population more susceptible.
The cost of a single measles vaccine dose is approximately 10,000 yen, presenting a financial barrier for many. This expense, coupled with concerns about the virus's spread, has prompted calls for government support to subsidize vaccination costs and encourage higher immunization rates.
