Tanzania
Season near baseline
In 2026 so far, the reported cases are above the expected number of cases. Cases are currently decreasing, as expected at this time of the year based on trends in previous years.
Data refreshed: 18 June 2026
Dengue cases in 2026
Some recent months include estimated values because official reports can arrive with delays.
Current year: Reported cases
Current year: Estimated cases (reported cases not available)
Uncertainty: 95% prediction interval (validation-calibrated)
Further analysis
In May 2026, Tanzania reported 17 dengue cases, well above what we would typically expect for this time of year.
Compared with April 2026, in which 2,327 cases were reported, this is a similar level of reported cases.
So far in 2026, the country has recorded 2,368 cases-about 1.1x the expected level-so the season is near average to date.
The last month with reported cases is April 2026.
In Tanzania the average peak month is April.