07.04.25

Second Human Fatality in India: A girl in Andhra Pradesh died from the H5N1 bird flu virus, marking India’s second confirmed human death from this strain since 2021.

Exposure and Symptoms: The girl reportedly consumed raw chicken and developed high fever and diarrhea before passing away on March 16.

H5N1 Overview: H5N1 is a type of avian influenza virus,

Transmission & Fatality: Primarily spreads through direct contact with infected birds/contaminated environments. Human-to-human transmission is rare. H5N1 has a high mortality rate (~60%).

Global Context: First human cases emerged in 1997 (Hong Kong). Most cases have been in Asia, linked to close contact with infected birds. WHO recorded 972 confirmed human cases (2003-Feb 2025).

Symptoms & Treatment: Common symptoms: fever, cough, sore throat, muscle aches. Antiviral drugs (e.g., oseltamivir) are effective if administered early.

Prevention Measures: Medical officers are screening hospital visitors for fever, though government officials have ruled out an outbreak. Affected areas declared red zones.

Poultry Culling: Dozens of chickens died in Andhra Pradesh, resulting in the culling of

Pandemic Potential: While H5N1 poses a threat, one case isn’t indicative of a pandemic. The virus requires further study to determine if it is easily transmissible among humans. Avian influenza is not currently on the WHO priority list of pathogens of pandemic potential.

Chicken Consumption: Properly cooked chicken is safe to eat, as high temperatures kill the virus.

Vegetation Decline: Dense vegetation in Balukhand-Konark Wildlife Sanctuary decreased from 41.8% in 1993 to 37.1% in 2023. This impacts the ecosystem that supports various species.

Dominance of Sparse Vegetation: Sparse vegetation now covers over 50% of the sanctuary area.

Cyclone Impact: Intense cyclones like Fani significantly degrade vegetation and alter the ecosystem permanently. Increased frequency of storms due to climate change worsens the decline.

Shoreline Changes: Northern shores are eroding rapidly, while southern parts are experiencing sediment deposition.

Future Erosion Concerns: Projections indicate potential erosion of over 51 meters in northern areas and deposition of up to 179 meters in southern sections by 2043.

Ecological Consequences: Loss of vegetation threatens migratory birds, deer, reptiles,

Location and Significance: The sanctuary is located in Puri district, Odisha, and is important for Olive Ridley turtle nesting.

Study Details: A study by Fakir Mohan University and Federal University of Paraiba (Brazil) used satellite data and machine learning to analyze land use and shoreline changes from 1993-2023, predicting trends through 2043.

River System: Traversed by the rivulets such as Nuanai River, Kusabhadra River, Kadua River, and Prachi River.

Establishment: It was declared a sanctuary on 23 April 1984, it has an area of 87 sq.km.

Pipalapanka Dam Revival: Odisha government’s renewed dam project at Pipalapanka, Ganjam district, sparks protests.

Rushikulya River Threat: Locals and environmentalists fear the dam endangers the Rushikulya River.

Priority to Industries: Allegations that the

Ecological Damage Concerns: Prafulla Samantara, along with other activists, highlight potential ecological damage and demand project withdrawal.

Rushikulya River Importance: The river flows through Kandhamal,

Olive Ridley Turtle Nesting: Rushikulya River mouth is crucial for Olive Ridley Turtle nesting (Arribada). Dam could increase salinity intrusion and reduce fish yield.

Climate Change Impact: Rising temperatures are skewing turtle sex ratios, further endangering the species.

Activist Opposition: Environmentalists argue the dam’s real purpose is industrial water supply, not irrigation, and cite threats to the river’s health from sand mining and industrial projects.