Malaria on the Run: Telangana Registers a Sharp Decline
Table of Contents
Source: Deccan Chronicle
Relevance:
GS Paper II – Governance & Social Justice (Health) | GS Paper III – Human Development
Important Key Concepts for Prelims and Mains:
For Prelims:
- Malaria, Vector-borne Diseases, Long-Lasting Insecticidal Nets (LLINs), Rapid Diagnostic Tests (RDTs), Disease Surveillance, Primary Health Centres
For Mains:
- Public Health Governance, Disease Elimination Strategies, Preventive Healthcare, Migrant Health, Decentralised Health Delivery, SDG-3
Why in News?
Telangana has reported a steep decline in malaria cases over the past decade, with annual cases falling from nearly 14,000 in 2014 to around 260–270 cases in 2024–25. The improvement comes amid national efforts to eliminate malaria, with India recording a 97% reduction in cases.
Malaria Burden in Telangana: Trends
- 2014: Nearly 14,000 cases
- 2016–2018: Annual cases reduced to 1,000–2,500
- 2024: 261 cases
- 2025: 270 cases
The data indicate a sustained downward trajectory, particularly after 2022.
Malaria
- Malaria is a life-threatening vector-borne disease caused by Plasmodium parasites, transmitted through the bite of infected female Anopheles mosquitoes.
- There are five species of Plasmodium that cause malaria in humans. Among them, P. falciparum and P. vivax pose the greatest threat.
- Malaria is predominantly found in tropical and subtropical regions of Africa, South America, and Asia.
- The mosquito becomes infected after biting an infected person. The parasites then enter the bloodstream of the next person bitten, travel to the liver, mature, and later infect red blood cells (RBCs).
- Symptoms of malaria include fever and flu-like illness, such as shaking chills, headache, muscle pain, tiredness, and anaemia.
- Malaria is both preventable and curable.
- Preventive measures include use of mosquito nets, repellents, wire mesh on doors and windows, and prevention of stagnant water.
- Treatment involves timely administration of antimalarial drugs.
Key Interventions Behind the Decline
1. Vector Control through LLINs
- Distribution of over 7.5 lakh long-lasting insecticidal mosquito nets since 2022
- Significantly reduced mosquito-human contact and transmission
2. Strengthened Surveillance
- Nearly 40 lakh screenings conducted annually
- Village-level screening using Rapid Diagnostic Tests (RDTs) by Auxiliary Nurse Midwives (ANMs)
3. Early Diagnosis and Prompt Treatment
- Immediate initiation of treatment at Primary Health Centres
- Follow-up testing after one week to ensure complete recovery
Causes of Malaria Transmission in Telangana
Malaria transmission in Telangana is driven by two distinct factors:
1. Indigenous Transmission in Endemic Areas
- Occurs in forest-covered and tribal-dominated districts with favourable mosquito breeding conditions
- Linked to:
- Stagnant water bodies
- Limited access to healthcare in remote areas
- Climatic suitability for Anopheles mosquitoes
2. Imported Cases through Migrant Labour
- A significant proportion of cases are brought in by migrant workers, particularly from high-burden neighbouring states such as Chhattisgarh
- In Bhadradri Kothagudem district, nearly 50% of reported cases are among migrant labourers
- These imported infections pose a risk of re-establishing local transmission if surveillance weakens
Surveillance and Treatment Architecture
Telangana follows a decentralised public health model, where frontline workers detect cases early and ensure treatment continuity. This has reduced complications, secondary transmission, and mortality.
District-wise and Migrant-linked Challenges
- Nearly 50% of cases are concentrated in Bhadradri Kothagudem district
- A large share involves migrant labourers, especially from Chhattisgarh
- Sporadic cases reported in Asifabad and Mulugu
- Urban areas report minimal transmission
This highlights the role of population mobility in sustaining residual malaria.
Challenges Ahead
- Managing imported cases linked to migration
- Sustaining high surveillance levels as cases decline
- Preventing resurgence due to complacency or climate variability
Way Forward
- Cross-border coordination for migrant health screening
- Continued LLIN coverage and indoor residual spraying in endemic pockets
- Community awareness and behaviour-change communication
- Integration of malaria surveillance with digital health platforms
Conclusion
Telangana’s success in reducing malaria demonstrates the effectiveness of preventive public health strategies, decentralised surveillance, and community-level interventions. Sustained vigilance, especially among migrant populations, will be crucial to achieving zero indigenous malaria and ensuring long-term elimination.
CARE MCQ
Q. With reference to malaria, consider the following statements:
- Malaria is a vector-borne disease transmitted by the bite of infected female Anopheles mosquitoes.
- Among the Plasmodium species infecting humans, Plasmodium falciparum and Plasmodium vivax pose the greatest threat.
- Malaria parasites directly infect red blood cells immediately after entering the human body.
-
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
- Statement 1 is correct: Malaria is caused by Plasmodium parasites and transmitted through the bite of infected female Anopheles mosquitoes.
- Statement 2 is correct: Of the five Plasmodium species that infect humans, P. falciparum and P. vivax are the most dangerous and widespread.
- Statement 3 is incorrect: After entering the human body, malaria parasites first travel to the liver, mature there, and only then infect red blood cells.
