Model Answer

The recent suspected outbreak of Hantavirus aboard a cruise ship near Cape Verde once again highlights the increasing threat posed by zoonotic diseases. Zoonoses are diseases that spread from animals to humans and account for nearly 60% of emerging infectious diseases globally. Rapid urbanisation, environmental degradation, climate change, and increasing human-animal interaction have intensified the risk of such outbreaks.

Challenges Posed by Zoonotic Diseases

1. Rapid Public Health Emergencies Many zoonotic diseases spread rapidly and overwhelm healthcare systems. Diseases such as: COVID-19 Nipah virus Ebola Hantavirus demonstrate how local outbreaks can quickly become global threats. For instance, Hantavirus can progress from flu-like symptoms to severe respiratory distress, often requiring intensive care support.

2. Lack of Effective Treatment and Vaccines Several zoonotic diseases lack: Specific antiviral drugs Vaccines Definitive cures In the case of hantavirus, treatment is mainly supportive through oxygen therapy and ventilation. This increases fatality risks, especially in low-resource settings.

3. Weak Disease Surveillance Systems Developing countries often face: Poor laboratory infrastructure Delayed detection Weak epidemiological surveillance This hampers early containment of outbreaks.

4. Ecological and Environmental Factors Deforestation, biodiversity loss, and climate change disturb natural ecosystems and increase contact between humans and disease-carrying animals. Rodent-borne diseases like hantavirus become more common due to: Urban crowding Improper sanitation Habitat disruption

5. Economic and Social Disruptions Zoonotic outbreaks affect: Tourism Trade Livelihoods Supply chains

The COVID-19 pandemic demonstrated the massive economic consequences of infectious disease outbreaks.

Importance of the One Health Approach The One Health Approach recognizes that:

Human health, animal health, and environmental health are interconnected.

It advocates collaborative efforts among: Doctors Veterinarians Environmental scientists Public health institutions

1. Integrated Disease Surveillance Monitoring diseases in: Wildlife Livestock Humans helps identify outbreaks at an early stage and prevent spillover events.

2. Improved Pandemic Preparedness One Health strengthens: Early warning systems Cross-sector coordination Rapid response mechanisms

This improves global health resilience.

3. Better Environmental Management Protecting ecosystems and biodiversity reduces uncontrolled human-animal interaction, thereby lowering zoonotic transmission risks.

4. Strengthening Public Awareness Public education regarding: Hygiene Rodent control Safe food practices Animal handling

plays a crucial role in prevention.

India and One Health India has initiated several measures such as: National One Health Mission Integrated Disease Surveillance Programme (IDSP) Strengthening zoonotic research under ICMR and DBT

However, greater coordination between veterinary and human health sectors remains necessary.

Conclusion The increasing frequency of zoonotic diseases such as hantavirus reflects the urgent need for a holistic and preventive public health framework. The One Health Approach provides a sustainable pathway for strengthening global health security through integrated surveillance, environmental conservation, and coordinated institutional action. In an interconnected world, preventing future pandemics requires recognizing that the health of humans, animals, and ecosystems is inseparable.