Nipah Virus Tracker
Nipah Virus Tracker: Bangladesh
Outbreak Locations in Bangladesh
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Map Legend
Circle size represents the number of confirmed cases
Bangladesh
First outbreak: 2001-04-01
Total Outbreaks
30
Active Cases
1
Total Cases
386
Total Deaths
279
Average Case Fatality Rate
72.3%
Timeline
Cases Timeline
Cases Over Time
Outbreak History
Jan 21, 2026 - Present
Rajshahi Division
1
0
0.0%
Source: Under investigation
Transmission: foodborne
ID: NIP-2026-BD-001
One confirmed case reported in Rajshahi Division with onset of fever and neurological symptoms on January 21. Patient had history of consuming raw date palm sap. 35 contacts under monitoring tested negative.
Jan 1, 2025 - Mar 31, 2025
Rajshahi
5
4
8000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2025-BD-003
2025 season outbreak. Surveillance ongoing.
Jan 1, 2025 - Jan 31, 2025
Rajshahi
2
2
10000.0%
Source: Under investigation
Transmission: Unknown
ID: NIP-2025-BD-001
Two fatal confirmed cases reported in Rajshahi division of Bangladesh in 2025.
Jan 1, 2025 - Jan 31, 2025
Dhaka
1
1
10000.0%
Source: Under investigation
Transmission: Unknown
ID: NIP-2025-BD-002
One fatal confirmed case reported in Dhaka division of Bangladesh in 2025.
Jan 1, 2025 - Jan 31, 2025
Barisal
1
1
10000.0%
Source: Under investigation
Transmission: Unknown
ID: NIP-2025-BD-004
One fatal confirmed case reported in Barisal division of Bangladesh in 2025.
Jan 1, 2024 - Jan 31, 2024
Dhaka
2
2
10000.0%
Source: Under investigation
Transmission: date palm sap
ID: NIP-2024-BD-001
Two laboratory-confirmed fatal cases of Nipah virus reported in Dhaka division during the seasonal outbreak period associated with date palm sap harvesting and consumption.
Jan 1, 2024 - Mar 31, 2024
Manikganj
14
10
7143.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap), human-to-human
ID: NIP-2024-BD-002
Cases reported across multiple districts during 2024 date palm sap season.
Jan 15, 2023 - Mar 31, 2023
Dhaka
11
8
7273.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap), human-to-human
ID: NIP-2023-BD-001
Cases reported in Dhaka division during date palm sap season.
Jan 1, 2022 - Mar 31, 2022
Sylhet
5
3
6000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2022-BD-001
Eastern Bangladesh outbreak.
Jan 1, 2021 - Mar 31, 2021
Natore
3
3
10000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2021-BD-001
Small cluster, all fatal.
Jan 1, 2020 - Mar 31, 2020
Rajshahi
8
5
6250.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2020-BD-001
Outbreak during COVID-19 pandemic.
Jan 1, 2019 - Mar 31, 2019
Chapainawabganj
4
4
10000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2019-BD-001
All cases fatal.
Feb 1, 2018 - Mar 31, 2018
Kushtia
7
5
7143.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2018-BD-001
Annual seasonal outbreak.
Jan 1, 2017 - Mar 31, 2017
Rangpur
3
3
10000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2017-BD-001
Small cluster, all fatal.
Jan 1, 2016 - Mar 31, 2016
Rajshahi
6
4
6667.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2016-BD-001
Lower case count due to improved surveillance.
Jan 1, 2015 - Mar 31, 2015
Nilphamari
9
6
6667.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2015-BD-001
Continued annual pattern in Bangladesh.
Jan 1, 2014 - Mar 31, 2014
Manikganj
18
9
5000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2014-BD-001
Awareness campaigns helped reduce CFR.
Jan 1, 2013 - Apr 30, 2013
Gaibandha
24
21
8750.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap), human-to-human
ID: NIP-2013-BD-001
Multiple clusters across districts.
Jan 1, 2012 - Mar 31, 2012
Joypurhat
12
10
8333.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2012-BD-001
Continued seasonal pattern.
Jan 15, 2011 - Mar 31, 2011
Lalmonirhat
44
40
9091.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap), human-to-human
ID: NIP-2011-BD-001
One of the largest outbreaks with very high CFR.
Jan 1, 2010 - Mar 31, 2010
Faridpur
16
14
8750.0%
Source: Under investigation
Transmission: bat-to-human, human-to-human
ID: NIP-2010-BD-001
Human-to-human transmission documented.
Jan 1, 2009 - Mar 31, 2009
Rajbari
4
1
2500.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2009-BD-001
Small cluster during date palm sap season.
Feb 1, 2008 - Mar 31, 2008
Manikganj
11
8
7273.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2008-BD-001
Seasonal outbreak during date palm sap harvesting.
Jan 1, 2007 - Mar 31, 2007
Thakurgaon
18
9
5000.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2007-BD-001
Multiple districts affected.
Jan 11, 2005 - Feb 28, 2005
Tangail
12
11
9167.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2005-BD-001
Very high case fatality rate.
Apr 20, 2004 - May 20, 2004
Faridpur district
18
18
10000.0%
Source: Under investigation
Transmission: Unknown
ID: NIP-2004-BD-003
Cluster of 30 cases including 18 deaths in Faridpur district, with 16 cases laboratory-confirmed by CDC Atlanta. Investigation team deployed and developing case management guidelines.
Jan 4, 2004 - Feb 3, 2004
Manikganj
35
10
2857.0%
Source: Under investigation
Transmission: Unknown
ID: NIP-2004-BD-002
Outbreak in Rajbari province with 35 cases and 10 deaths. Part of larger outbreak with 9 total laboratory-confirmed cases.
Jan 1, 2004 - Mar 31, 2004
Rajbari
67
50
7463.0%
Source: Under investigation
Transmission: bat-to-human, human-to-human
ID: NIP-2004-BD-001
Large outbreak with evidence of person-to-person transmission.
Jan 1, 2003 - Feb 28, 2003
Naogaon
12
8
6667.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2003-BD-001
Linked to consumption of raw date palm sap.
Apr 1, 2001 - May 31, 2001
Meherpur
13
9
6923.0%
Source: Under investigation
Transmission: bat-to-human (date palm sap)
ID: NIP-2001-BD-001
First Bangladesh outbreak. Associated with drinking raw date palm sap.
About Nipah Virus Tracking in Bangladesh
Bangladesh has recorded 30 Nipah virus outbreaks since 2001-04-01, with 1 active cases and 279 deaths. Our Nipah virus tracker monitors all documented outbreaks to provide comprehensive surveillance data for public health awareness.
The case fatality rate in Bangladesh averages 72.3%, highlighting the severity of Nipah virus infections in this region. Tracking these outbreaks helps researchers and public health officials understand transmission patterns and improve outbreak response.