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What is Avian influenza? - UPSC Environment And Ecology
What is What is Avian influenza? in UPSC Environment And Ecology?
What is Avian influenza? is a key topic under Environment And Ecology for UPSC Civil Services Examination. Key points include: Avian influenza (bird flu) is a highly contagious viral infection primarily affecting birds.. The H5N1 strain was first identified in domestic waterfowl in Southern China in 1996.. Human cases are rare but can occur, with difficult person-to-person transmission.. Understanding this topic is essential for both UPSC Prelims and Mains preparation.
Why is What is Avian influenza? important for UPSC exam?
What is Avian influenza? is a Easy-level topic in UPSC Environment And Ecology. It is tested in both Prelims (factual MCQs) and Mains (analytical answer writing). Previous year UPSC questions have frequently covered aspects of What is Avian influenza?, making it essential for comprehensive IAS preparation.
How to prepare What is Avian influenza? for UPSC?
To prepare What is Avian influenza? for UPSC: (1) Study the comprehensive notes covering all key concepts on Vaidra. (2) Practice previous year questions on this topic. (3) Connect it with current affairs using daily updates. (4) Revise using key takeaways and mind maps available for Environment And Ecology. (5) Write practice answers linking What is Avian influenza? to related GS Paper topics.
Key takeaways of What is Avian influenza? for UPSC
- Avian influenza (bird flu) is a highly contagious viral infection primarily affecting birds.
- The H5N1 strain was first identified in domestic waterfowl in Southern China in 1996.
- Human cases are rare but can occur, with difficult person-to-person transmission.
- WHO reports a high mortality rate (approx. 60%) in humans infected with H5N1.
- It poses ongoing global health, economic, and environmental challenges, requiring a 'One Health' approach.
What is Avian influenza?
Easy⏱️ 6 min read
environment and ecology
📖 Introduction
Understanding Avian Influenza
Avian influenza, commonly known as bird flu, is a highly contagious viral infection. It primarily impacts various bird species, including both wild birds and domestic poultry.
Key Concept: Zoonotic Potential
While primarily affecting birds, certain strains of avian influenza can, in rare instances, transmit to humans, making it a significant public health concern.
Origin and Identification of H5N1
The highly pathogenic H5N1 avian influenza virus was first identified in 1996. This initial discovery occurred in domestic waterfowl located in Southern China.
Virus Naming Convention:
- The specific virus identified was named A/goose/Guangdong/1/1996.
- This name indicates its type (A), host (goose), location of isolation (Guangdong), strain number (1), and year of isolation (1996).
Transmission to Humans and Mortality
Human cases of H5N1 avian influenza occur occasionally. However, it is generally considered difficult for the infection to transmit from person to person.
Despite the low human-to-human transmission risk, when people do become infected, the outcome can be severe. The World Health Organization (WHO) reports a high mortality rate associated with human H5N1 infections.
Human Mortality Rate:
- According to WHO data, the mortality rate for infected individuals is approximately 60%.
UPSC Insight: Questions on Avian Influenza often focus on its zoonotic nature, public health implications, and preventive measures. Understanding the high mortality rate in humans is crucial.
💡 Key Takeaways
- •Avian influenza (bird flu) is a highly contagious viral infection primarily affecting birds.
- •The H5N1 strain was first identified in domestic waterfowl in Southern China in 1996.
- •Human cases are rare but can occur, with difficult person-to-person transmission.
- •WHO reports a high mortality rate (approx. 60%) in humans infected with H5N1.
- •It poses ongoing global health, economic, and environmental challenges, requiring a 'One Health' approach.
🧠 Memory Techniques
95% Verified Content
📚 Reference Sources
•World Health Organization (WHO) fact sheets on Avian Influenza (H5N1)