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Study links uneven urbanisation with high risk of cholera outbreaks

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Study links uneven urbanisation with high risk of cholera outbreaks

By Sunderarajan Padmanabhan

Families living in rural areas of districts at higher risk of cholera as funds for water and sanitation infrastructure are diverted to urban areas, say experts

New Delhi: Higher levels of urbanisation are no guarantee for preventing the outbreak of cholera. In fact, a new study by Indian and international experts seems to indicate that higher urbanisation also leads to an increased risk of a cholera epidemic since funds for water and sanitation infrastructure are often allocated disproportionately within an ‘urban’ district, with its rural areas receiving only a pittance.

In other words, the study blames the uneven allocation of funds for water and sanitation infrastructure within districts – urban centres getting more funds than rural areas within a district that is otherwise categorised as ‘urban’. The use of improved sanitation facilities in urban areas in India has increased to 63 per cent as of 2015 while it has gone up to only 28 per cent in rural areas.

“It appears that families living in rural areas of districts with more cities are at higher risk, perhaps because the resources in these districts are allocated to the urban areas, neglecting the rural areas of the district,” the researchers have observed in their study in journal PLOS One.

The study has also found that there seemed to be large scale underreporting of cholera cases. There is significant variation between actual number of cases being reported and ground reality based on the various risk factors. For instance, the study says, Uttar Pradesh did not report any case despite having areas that qualified as ‘high risk’ zones. The reasons for underreporting are limited disease surveillance, inadequate laboratory capacity especially at the peripheral health care centres, and reluctance on part of authorities to acknowledge the problem for fear of societal repercussions.

The findings are based on district level data of cases reported between 2010 to 2015 from the Integrated Disease Surveillance Programme, and socioeconomic characteristics and coverage of water and sanitation obtained from the 2011 census report. Researchers used this data to perform spatial analysis to identify cholera hotspots, and employed a modeling method called ‘zero-inflated Poisson regression’ to identify the factors associated with cholera and predicted case counts at district level.

A total of 27,615 cholera cases were reported during the six-year period. As many as 24 out of the 36 states in the country had reported cholera during these years. Of them, 13 States were classified as endemic. In terms of districts, out of the 641 districts in the country, 78 districts in 15 states were identified as “hotspots” based on the reported cases. However, 111 districts in nine states were identified as “hotspots” from model-based predicted number of cases.

Overall, one-fourth of the districts in India reported cholera and 90 districts of them have been identified as hotspots, making cholera is a widespread major public health problem in the country. It is major problem in West Bengal, Karnataka, Chhattisgarh, Punjab, and areas of Himachal Pradesh adjoining Punjab. In addition, most districts in Karnataka have been identified as cholera hotspots. The risk for cholera in a district is linked with poor sanitation and drainage conditions and urbanization level in the district.

The research team included Mohammad Ali and David A.Sack of Department of International Health, Johns Hopkins Bloomberg School of Public Health; Nirmal K. Ganguly, Sanjukta Sen Gupta, and Nisha Arora of Policy Center for Biomedical Research, Translational Health Science and Technology Institute; Pradeep Khasnobis and Srinivas Venkatesh of National Center for Disease Control; Dipika Sur of Indian Public Health Association; and Gopinath B. Nair of World Health Organization.

(This article is from a syndicated feed provided by the India Science Wire)

India News

Congress, BJP attack Bhagwant Mann over remarks on Punjab blasts

Congress and BJP have jointly criticised Punjab CM Bhagwant Mann after he linked recent blasts near defence sites to political motives, triggering a controversy.

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Bhagwant Mann

A political row has erupted in Punjab after Chief Minister Bhagwant Mann linked recent blast incidents to political motives, drawing sharp criticism from both the Congress and the Bharatiya Janata Party (BJP).

The controversy follows two low-intensity explosions reported within a short span of time — one near the Border Security Force (BSF) headquarters in Jalandhar and another close to an army cantonment area in Amritsar. The incidents raised concerns over security, particularly given the sensitive nature of the locations.

In response, Mann suggested that the blasts could be part of a larger political strategy. His remarks triggered a strong backlash, with opposition parties accusing him of politicising a serious security issue.

Leaders from the Congress criticised the Chief Minister’s statement, calling it inappropriate and alleging that such comments undermine the gravity of the situation. They stressed that matters related to national security should be handled with caution and responsibility.

The BJP also joined the criticism, questioning the basis of Mann’s claims and urging the state government to focus on investigation and law enforcement instead of making political allegations.

The developments have led to an unusual moment where both Congress and BJP appear aligned in their criticism of the Aam Aadmi Party-led government in the state.

Meanwhile, the blasts themselves have intensified concerns over safety in border regions, with authorities continuing their investigation into the incidents. No casualties were reported, but the proximity to defence establishments has made the issue particularly sensitive.

The episode has further escalated political tensions in the state, with security and accountability emerging as key points of debate.

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Himanta Biswa Sarma resigns as Assam chief minister, oath ceremony likely after May 11

Himanta Biswa Sarma resigns as Assam Chief Minister after BJP-led NDA’s victory. He will continue as caretaker CM until the new government is sworn in after May 11.

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Himanta sharma

Assam Chief Minister Himanta Biswa Sarma resigned from his post on Wednesday, paving the way for the formation of a new government after the BJP-led NDA secured a decisive victory in the 2026 Assembly elections.

Sarma submitted his resignation to Governor Lakshman Prasad Acharya at Lok Bhawan in Guwahati. The Governor accepted the resignation and asked him to continue as the caretaker Chief Minister until the new government takes charge.

The resignation comes after the NDA’s strong electoral performance, where the alliance won a clear majority in the 126-member Assembly, ensuring its return to power for another term.

Oath ceremony expected after May 11

Speaking to reporters after submitting his resignation, Sarma said the swearing-in ceremony for the new government is likely to be held after May 11.

He indicated that Prime Minister Narendra Modi has been invited to attend the ceremony but is unavailable until May 11, which has influenced the tentative schedule.

Decision on next chief minister soon

Sources suggest that central observers, including senior BJP leaders, are expected to arrive shortly to oversee the selection of the legislature party leader. The newly elected MLAs will then decide on the next Chief Minister.

Despite the formal resignation, party sources indicate that Sarma is likely to continue in the role for another term, given the BJP’s strong mandate in the state.

The move marks the beginning of the government formation process in Assam following the election results declared earlier this week.

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Rahul Gandhi and Vijay alliance took shape through backchannel talks, early signals from Congress leaders

Congress outreach and political calculations led to Rahul Gandhi and Vijay coming together after the Tamil Nadu 2026 election results.

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The coming together of Rahul Gandhi and actor-politician Vijay in Tamil Nadu after the 2026 Assembly elections was not sudden, but the result of behind-the-scenes political manoeuvring and early signals within the Congress.

According to media reports, some leaders in the Tamil Nadu Congress had already sensed the scale of Vijay’s surge during the campaign, anticipating what was later described as a “wave” in favour of his party.

After the results, where Vijay’s Tamilaga Vettri Kazhagam (TVK) emerged as the single largest party but fell short of a majority, communication channels between the Congress leadership and Vijay quickly became active.

A key moment in this evolving political equation was a phone call from Rahul Gandhi to Vijay, congratulating him on the party’s strong performance. The conversation was seen as more than a courtesy, signalling the possibility of cooperation at a time when government formation required additional support.

Reports indicate that discussions within Congress weighed the political benefits of supporting Vijay, especially given the shifting dynamics in the state where traditional dominance by major Dravidian parties has been challenged.

With TVK needing allies to cross the majority mark, Congress emerged as a potential partner, leading to a broader political realignment in the state. This development also triggered tensions within opposition alliances, highlighting the strategic importance of the decision.

The evolving partnership reflects a mix of electoral pragmatism and changing voter sentiment, particularly the growing influence of younger voters, which leaders acknowledged as a key factor in the election outcome.

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