RecordWeek 9 of 2026 (23 Feb–1 Mar)Outbreaks
West Bengal: 5 outbreaks reported in week 9 of 2026, the most since week 31 of 2025.
What happened
- Week 9 of 2026
- 5
- 2025-W31
- 5
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 outbreaks reported, 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 9 of 2026 | 5 | IDSP weekly outbreak report, 2026 week 9 (2026-02-23 to 2026-03-01) | IDSP weekly outbreak report 2026-W09, count over 5 rows for West Bengal: p.27 WB/PAR/2026/9/354, p.28 WB/PAR/2026/9/355, p.28 WB/ALI/2026/9/356, p.29 WB/JHA/2026/9/357, p.30 WB/PUR/2026/9/358 |
| Week 31 of 2025 | 5 | IDSP weekly outbreak report, 2025 week 31 (2025-07-28 to 2025-08-03) | IDSP weekly outbreak report 2025-W31, count over 5 rows for West Bengal: p.28 WB/ALI/2025/31/1439, p.29 WB/PUR/2025/31/1440, p.29 WB/PUR/2025/31/1441, p.31 WB/MUR/2025/31/1446, p.32 WB/PUR/2025/31/1447 |
Source and method
More signals for outbreaks reported in West Bengal
- West Bengal: 12 outbreaks reported in the 4 weeks to week 20 of 2026, against a median of 6 for the same weeks in 2023–25.
- West Bengal: 15 outbreaks reported in the 4 weeks to week 19 of 2026, against a median of 7 for the same weeks in 2023–25.
- West Bengal: 16 outbreaks reported in the 4 weeks to week 18 of 2026, against a median of 7 for the same weeks in 2023–25.
- West Bengal: 13 outbreaks reported in the 4 weeks to week 17 of 2026, against a median of 7 for the same weeks in 2023–25.
- West Bengal: 6 outbreaks reported in week 16 of 2026, the most since week 18 of 2025.
- West Bengal: 12 outbreaks reported in the 4 weeks to week 12 of 2026, against a median of 6 for the same weeks in 2023–25.
Cite this
According to the India Health Observatory, West Bengal: 5 outbreaks reported in week 9 of 2026, the most since week 31 of 2025. Source: Integrated Disease Surveillance Programme, National Centre for Disease Control, MoHFW, IDSP weekly outbreak report, 2026 week 9 (2026-02-23 to 2026-03-01). https://indiahealthobservatory.com/signals/outbreaks-reported--west-bengal--2026-w09--record
See also West Bengal and 5 in context.