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Overlapping Hazards

Bihar floods and COVID-19 – Is there a connection?

As available data point to a probable connection between floods and a higher incidence of positive coronavirus cases, the overlap needs to be considered in planning for 2021 monsoon

Government data from 2020 point to a probable connection between coronavirus cases and floods (Photo courtesy Megh Pyne Abhiyan)

In May, 2020, Nirmalya Choudhury, a researcher with VikasAnvesh Foundation, and I had jointly written an article titled Is North Bihar prepared for the overlapping challenge of COVID-19 and the annual floods? for Gaon Connection, an online magazine.

In the article, we had highlighted the need for strategic preparedness and planned response to address the vulnerabilities of habitations that were likely to be exposed to the COVID-19 pandemic and the threat of floods in the coming months.

Exactly after one year, the past is being revisited in a more critical context, with the hope that overlapping hazards will be addressed with adequate preparation and orchestrated response during the forthcoming monsoon.

It is meaningful to highlight a few critical trends of the pandemic and floods respectively and of their possible concurrence in the same expanse last year (2020). According to the Health Department (HD), Government of Bihar (GoB), on 31 December, 2020, a total of 252,792 positive cases and 1,397 deaths were recorded in the state

Therefore, it will not be wrong to claim that the figures shared by HD as on 31 December, 2020 can be considered as the impact of the first wave of COVID-19, considering the calendar year and the duration of the first wave as synonymous.

As on 13 July, 2020, the total COVID-19 positive cases in Bihar were 17,421 with 134 deaths, whereas on 09 September, 2020, the total number of positive cases was 152,192 and deaths was 775. Between 13 July and 09 September, 2020, there was an increase of 134,771 cases, which is 53% of the total cases recorded in Bihar as published on 31 December, 2020. This is the period (13 July – 09 September) when North Bihar experienced floods last year. (See Table 1)

The first daily report on floods highlighting the impact in North Bihar was published by the Disaster Management Department (DMD) on 13 July, 2020 on their website, in which seven districts – Sitamarhi, Sheohar, Supaul, Kishanganj, Darbhanga, Muzaffarpur and Gopalganj were mentioned as affected. A total of 23 administrative blocks, 98 panchayats and 168,668 persons were affected.

Seven flood-affected districts of North Bihar had a high number of coronavirus cases last year, indicating a possible overlap of hazards (Photo courtesy Megh Pyne Abhiyan)

On the same day, the districts of Sitamarhi had 187 active cases and 39 positive cases, Sheohar had 117 and 18, Supaul recorded 370 and 61, Kishanganj recorded 237 and 27, Darbhanga had 405 and 192, Muzaffarpur had 787 and 240 and Gopalganj had 471 and 170.

Based on the data available in the public domain it is difficult to show with surety, a correlation between the 747 active cases in the 23 flood-affected blocks in the seven districts. At the same time there are no counter arguments establishing the opposite. However, the documented data according to HD’s daily report states that there were 747 active cases on 13 July, 2020 in these seven districts.

The issue of overlapping hazards becomes further intriguing when data of floods and COVID-19 as of 09 September, 2020 are compared. According to DMD’s last of the daily flood report available in the public domain (as of 9 September, 2020) a total of 16 districts were affected.

The districts of Sitamarhi, Sheohar, Supaul, Kishanganj, Darbhanga, Muzaffarpur, Gopalganj, Purbi Champaran, Pashchim Champaran, Khagaria, Saran, Samastipur, Siwan, Madhubani, Madepura and Saharsa were affected by floods, which included 130 administrative blocks, 1,333 panchayats and 836,2451 people.

However, there was a second cycle of floods in North Bihar between 23 and 26 September, 2020, but due to unavailability of Form IX – the final flood report of 2020 highlighting the cumulative impact of floods in the public domain, therefore, the last of the daily report shared on 09 September, 2020 by DMD has been considered as the representation of the cumulative impact.

The districts that were affected by flood between 13 July and 09 September, 2020 recorded active and positive COVID-19 cases on 09 September, 2020 in the following manner:

DistrictPositive casesActive casesBlocks affectedPeople affectedPopulation (Census 2011)
Pashchim Champaran3,9914289143,2833,922,780
Purbi Champaran5,626599181,020,0095,082,868
Sheohar896149417,178656,916
Sitamarhi2,99728313358,7533,419,622
Darbhanga2,618351152,082,0053,921,971
Madhubani5,1636144264,8054,476,044
Supaul2,914426581,1982,228,397
Kishanganj2,46837351,4351,690,948
Saharsa3,8335124336,3071,897,102
Madhepura2,4883883292,2861,994,618
Khagaria2,4031417152,0561,657,599
Samastipur3,71538610340,0004,254,782
Muzaffarpur6,726785151,969,7404,778,610
Siwan3,2262794162,1253,318,176
Saran4,7965089725,8953,943,098
Gopalganj3,1444045415,3762,558,037
Total57,0046,6261308,362,45149,801,568
Table 1 – COVID-19 positive cases and flood-affected districts

The total 57,004 positive cases as of 09 September, 2020 in the 16 flood-affected districts (2020), was 37% of the total cases recorded till 31 December, 2020. On the same day HD reported that as of 08 September, 2020 a total of 4.45 million persons were tested for COVID-19 across the 38 districts, which averages to 0.11 million tests per district, (based on a state level generalized calculation).

The total number of tests in the state works out to be a mere 4% of the total population of Bihar. According to the Census 2011, the total population of the 16 flood-affected districts in North Bihar is 49.8 million. If on an average 0.11 million tests were conducted in each of the 38 districts then approximately 1.76 million tests were undertaken across the 16 flood-affected districts.

This amounts to 3.53% of the total population of these districts. With testing percentage at 3.53 of the flood-affected districts, the status of the overlapping hazards between 13 July and 09 September, 2020 will remain an unanswered question, and so will the impact of the overlapping hazards.

North Bihar has 63% of the total population of the state (approximate population of 65.5 million people as against 103.80 million of the state) with an estimated population density of 1,294 persons per sq. km as against state’s 1,102 resulting in densely populated habitations.

According to HD’s daily report of 27 May, 2021 the 22 flood-prone districts of North Bihar (including Bhagalpur) have the following positive and active cases. (The other districts in Bihar that encounter occasional floods are Buxar, Bhojpur, Lakhisarai, Munger, Patna, Nalanda, Nawada, Jehnabad, and Arwal)

DistrictPositive casesActive casesNumber of years the district had floods between 2000 & 2020
Pashchim Champaran20,53070418
Purbi Champaran18,28197213
Sheohar4,1974169
Sitamarhi8,44151014
Darbhanga10,06662016
Madhubani17,57792617
Supaul16,0801,26821
Araria14,1441,09514
Kishanganj9,36098411
Purnea23,15279718
Katihar17,28792217
Bhagalpur25,33370117
Madhepura11,86282814
Saharsa16,89048320
Khagaria9,54537319
Begusarai26,2401,50311
Samastipur19,0321,44215
Muzaffarpur30,2321,55619
Vaishali19,1535329
Siwan14,5445366
Saran22,32264010
Gopalganj15,58764614
Table 2 – Flood-prone districts, COVID-19 cases in 2021 and frequency of floods

Barring Sheohar, Siwan and Vaishali districts, the 19 flood-prone districts of Bihar have experienced floods for a minimum of 10 years between 2000 and 2020. Districts that have experienced floods more than 15 years in the past two decades are Supaul, Saharsa, Khagaria, Muzaffarpur, Pashchim Champaran, Purnea, Bhagalpur, Katihar, Madhubani, Darbhanga and Samastipur.

On the other hand, according to the HD data of 27 May, 2020, the 22 flood-prone districts that have registered more than 15,000 COVID-19 positive cases are Muzaffarpur (experienced floods 19 years between 2000 and 2020), Begusarai (11), Bhagalpur (17), Purnea (18), Saran (10), Pashchim Champaran (18), Vaishali (9), Samastipur (15), Purbi Champaran (13), Madhubani (17), Katihar (17), Saharsa (20), Supaul (21) and Gopalganj (14). In all, there are 14 flood-prone districts that have recorded more than 15,000 COVID-19 positive cases as on 27 May, 2020.

This correlation is an area that must be delved deeper while planning for the forthcoming 2021 monsoon season, because it is a point of concern keeping in view the present status of the second wave and the future possibilities of the third one.

On 04 May, 2021 the DMD issued detailed guidelines for flood preparedness for the forthcoming monsoon at the district level. Similarly, on 05 May, 2021, GoB issued a Flood Control Order framed by Water Resources Department (WRD).

The second and concluding part of this flood series, will highlight the pre-flood preparedness measures identified by DMD and WRD, alongside certain additional measures to ensure a comprehensive approach for the probable overlapping hazards at the district level. The article will also emphasize on how the preparedness strategies can be tailored as per the existing status and possibilities of the overlapping hazards.

Eklavya Prasad leads Megh Pyne Abhiyan, meaning Cloud Water Campaign, a public charitable trust functioning in Bihar and Jharkhand. Views are personal.

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