Japanese encephalitis - number of reported cases in Japan

Japan: Japanese encephalitis - number of reported cases was 4 in 2025. ◆ Volatile

Latest (2025)
4
Change on year
down 55.6%
World rank
14th
of 122 countries
All-time high
11
in 2016
All-time low
0
in 2018
Years of data
17
2006–2025

Japanese encephalitis - number of reported cases in Japan, 2006–2025

02.557.5102006201520252006: 52008: 32009: 32010: 42011: 92012: 22013: 92014: 22015: 22016: 112017: 32018: 02019: 92020: 52021: 32024: 92025: 4

Source: World Health Organization, Global Health Observatory.

Analysis

Japan recorded 4 for japanese encephalitis - number of reported cases in 2025.

The figure is down 55.6% on the previous year and up 100.0% over ten years.

Over the whole period, japanese encephalitis - number of reported cases in Japan peaked at 11 in 2016 and was at its lowest, 0, in 2018.

That places Japan 14th out of 122 countries with data for 2025, putting it in the top quarter.

The series is highly variable year to year, so single readings are best treated with caution.

Japanese encephalitis - number of reported cases in Japan, year by year

Annual values for Japanese encephalitis - number of reported cases in Japan, 2006 to 2025.
Year Value Change
2006 5
2008 3 -40.0%
2009 3 +0.0%
2010 4 +33.3%
2011 9 +125.0%
2012 2 -77.8%
2013 9 +350.0%
2014 2 -77.8%
2015 2 +0.0%
2016 11 +450.0%
2017 3 -72.7%
2018 0 -100.0%
2019 9
2020 5 -44.4%
2021 3 -40.0%
2024 9 +200.0%
2025 4 -55.6%

Averages by decade

DecadeAverage LowestHighest Years
2000s 3.67 3 5 3
2010s 5.1 0 11 10
2020s 5.25 3 9 4

Countries ranked near Japan

  1. 11 Cambodia 8 compare
  2. 12 South Korea 7 compare
  3. 13 Bhutan 6 compare
  4. 14 Laos 4 compare
  5. 16 Thailand 3 compare
  6. 17 Sri Lanka 2 compare

See the full ranking of 132 places →

More health data for Japan

All data for Japan →

Frequently asked questions

What is japanese encephalitis - number of reported cases in Japan?
Japanese encephalitis - number of reported cases in Japan was 4 in 2025, according to World Health Organization, Global Health Observatory.
What is the highest japanese encephalitis - number of reported cases recorded in Japan?
The highest recorded value was 11 in 2016.
What is the lowest japanese encephalitis - number of reported cases recorded in Japan?
The lowest recorded value was 0 in 2018.
How does Japan rank for japanese encephalitis - number of reported cases?
Japan ranks 14th out of 122 countries with data for 2025.
Is japanese encephalitis - number of reported cases rising or falling in Japan?
Over the last ten years it is up 100.0%. The long-run trend across the full record is volatile.
Where does this Japan data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Japanese encephalitis - number of reported cases. Statizoid updates them automatically from the source API.

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Japanese encephalitis - number of reported cases in Japan. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 27 August 2026, from https://health.statizoid.com/stat/japanese-encephalitis-number-of-reported-cases/japan/

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About this data

Indicator
Japanese encephalitis - number of reported cases
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
132 places, 1,735 data points, 2000–2025
Last refreshed