What is Kerala’s risk profile for Nipah?, Pg12

Key Highlights:

• Kerala has experienced recurrent Nipah virus (NiV) outbreaks since its first encounter in 2018, with a high case fatality rate of 91% initially.
• The Indian flying fox bat (Pteropus medius) is identified as the natural reservoir for NiV in Kerala, with the virus circulating in bat colonies.
• The period from April to September carries the highest risk for Nipah spillover due to increased bat activity and fruit abundance.
• The World Health Organization (WHO) has classified Nipah as a priority pathogen due to its lethality and pandemic potential.
• Kerala has strengthened its health system through enhanced surveillance, rapid pathogen identification, and infection control measures.
• The state has implemented One Health strategies, including a community-based surveillance network and the One Health Centre for Nipah Research and Resilience in Kozhikode.

Detailed Insights:

• The 2018 outbreak highlighted the challenge of nosocomial transmission, prompting the state to improve hospital infection control.
• Kerala's vulnerability to zoonotic diseases stems from a convergence of ecological, demographic, and climatic factors, particularly in the Western Ghats region.
• Deforestation, habitat fragmentation, and increased human-wildlife interaction contribute to the risk of novel pathogen exposure.
• The state developed clinical algorithms for emerging viral infections and expanded its Virus Research and Diagnostic Laboratory (VRDL) networks.
• Community awareness campaigns aim to reduce the bat-human interface, a key component of the state's preparedness.
• Research efforts, in collaboration with the National Institute of Virology (NIV), are focused on developing indigenous monoclonal antibodies against the Bangladesh strain of NiV.

Key Concepts Involved:

• Nipah Virus (NiV): A highly pathogenic zoonotic paramyxovirus causing severe encephalitis and respiratory illness in humans.
• Zoonotic Disease: An infectious disease that has jumped from an animal to humans.
• One Health: A collaborative, multi-sectoral approach recognizing the interconnectedness of human, animal, and environmental health.
• Nosocomial Transmission: The spread of pathogens within healthcare facilities, often referred to as hospital-acquired infections.