2016 · Paper V · 10 marksFrequently asked

What is the cause of Chikungunya? What are its preventive measures and treatment? Give a comparative note on symptomology of Chikungunya and Dengue?

In short

Chikungunya is caused by an alphavirus spread by Aedes mosquitoes, prevented by removing breeding sites and using nets and repellents, and treated only supportively with analgesics, fluids and rest. Unlike dengue, it causes severe, long-lasting joint pain, while dengue brings marked platelet fall and risk of haemorrhage and shock.

Model answer

Ghissu Editorial · Verified 4 Oct 2026

Introduction
Vector-borne diseases like Chikungunya and Dengue pose major public health challenges in India, with Andhra Pradesh experiencing recurrent outbreaks due to favorable climatic and urban conditions. These diseases significantly impact morbidity, especially during monsoon seasons when mosquito breeding peaks, stressing the healthcare system.
Cause of Chikungunya
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Viral Transmission

Chikungunya virus, an alphavirus, is transmitted by Aedes aegypti and Aedes albopictus mosquitoes breeding in stagnant water during monsoon seasons in Andhra Pradesh. These vectors are also responsible for Dengue, leading to overlapping outbreaks.

Preventive Measures and Treatment
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Vector Control and Personal Protection

Eliminating breeding sites, using mosquito nets and repellents, and community awareness campaigns are emphasized in Andhra Pradesh to reduce transmission. Public health drives promote wearing long-sleeved clothing and insecticide-treated nets during peak seasons.

Comparative Symptomology
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Complications and Diagnosis

Dengue risks hemorrhagic fever and thrombocytopenia, rare in Chikungunya; overlapping symptoms necessitate laboratory confirmation, challenging in resource-limited Andhra Pradesh. Early differentiation is vital for appropriate treatment.

Way Forward
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Surveillance and Healthcare Strengthening

Enhanced vector surveillance and improved diagnostic capacity under Integrated Disease Surveillance Programme (IDSP) are critical. Community engagement and addressing insecticide resistance will improve control.

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Integrated Public Health Approach

Coordinated efforts involving urban planning, sanitation, and health education can reduce mosquito breeding and disease burden in vulnerable regions of Andhra Pradesh.

Conclusion
Targeted vector control and differential diagnosis remain essential to curb Chikungunya and Dengue outbreaks in Andhra Pradesh. Strengthening healthcare infrastructure and community participation will enhance resilience against these vector-borne diseases.

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Hand-drawn diagram: Chikungunya vs Dengue. Chikungunya vs Dengue. Comparison of Chikungunya and Dengue
Diagram: Chikungunya vs Dengue

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Human diseases; genetic engineering basics; biotechnology in agriculture; vaccines54 questions

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