RecordWeek 20 of 2026 (11–17 May)Outbreaks
India: 5 dengue outbreaks in week 20 of 2026, the most since week 42 of 2025.
What happened
- Week 20 of 2026
- 5
- 2025-W42
- 6
Why it matters
A record says how long it has been since the series was this high or this low. It puts a single value in the context of the whole published history.
For dengue outbreaks, neither a rise nor a fall is better in itself, so the observatory marks this movement as unusual rather than good or bad.
Historical context
29 consecutive earlier weeks were lower.
The underlying data
| Period | Value | Release | Where in the document |
|---|---|---|---|
| Week 20 of 2026 | 5 | IDSP weekly outbreak report, 2026 week 20 (2026-05-11 to 2026-05-17) | IDSP weekly outbreak report 2026-W20, count over 5 rows for all States/UTs: p.10 KL/ERN/2026/20/782, p.10 KL/IDU/2026/20/783, p.12 KL/KOT/2026/20/787, p.12 KL/KOT/2026/20/789, p.13 KL/KOZ/2026/20/790 |
| Week 42 of 2025 | 6 | IDSP weekly outbreak report, 2025 week 42 (2025-10-13 to 2025-10-19) | IDSP weekly outbreak report 2025-W42, count over 6 rows for all States/UTs: p.9 HP/UNA/2025/42/1883, p.10 JK/KAT/2025/42/1884, p.24 KL/THR/2025/42/1898, p.38 UP/HAP/2025/42/1913, p.47 JK/JAM/2025/42/1923, p.48 TR/NOR/2025/42/1925 |
Source and method
More signals for dengue outbreaks in India
- India: 7 dengue outbreaks in week 23 of 2026, the most since week 35 of 2025.
- India: 9 dengue outbreaks in the 4 weeks to week 17 of 2026, against a median of 3 for the same weeks in 2023–25.
- India: 8 dengue outbreaks in the 4 weeks to week 16 of 2026, against a median of 2 for the same weeks in 2023–25.
- India: 8 dengue outbreaks in the 4 weeks to week 15 of 2026, against a median of 2 for the same weeks in 2023–25.
- India: 10 dengue outbreaks in week 35 of 2025, the most since week 28 of 2024.
- India: 26 dengue outbreaks in the 4 weeks to week 35 of 2025, against a median of 15 for the same weeks in 2022–24.
Cite this
According to the India Health Observatory, India: 5 dengue outbreaks in week 20 of 2026, the most since week 42 of 2025. Source: Integrated Disease Surveillance Programme, National Centre for Disease Control, MoHFW, IDSP weekly outbreak report, 2026 week 20 (2026-05-11 to 2026-05-17). https://indiahealthobservatory.com/signals/dengue-outbreaks--india--2026-w20--record
See also India and 5 in context.