The 11-year-old from east Delhi was brought to Sir Ganga Ram Hospital here with what initially seemed like a routine cough, doctors said in the study. His condition, however, worsened as his respiratory functions declined, doctor said in a statement. A new case study of a boy, who developed potentially fatal allergic reactions after prolonged contact with pigeon feathers and droppings, has brought to light severe health risks related to long-term exposure to the bird.

The 11-year-old from east Delhi was brought to Sir Ganga Ram Hospital here with what initially seemed like a routine cough, doctors said in the study. His condition, however, worsened as his respiratory functions declined, they said in a statement. Medical tests showed lung inflammation and opacities consistent with HP, he said.

Opacities refer to areas appearing white on a chest radiograph, when they should be darker. Dr Saurabh Khanna, Lead Consultant - Paediatrics & Neonatology, CK Birla Hospital, Gurgaon shares his expert tips: How it can cause harm in kids? Prolonged exposure to pigeon feathers and droppings can cause serious harm in children, particularly by triggering Hypersensitivity Pneumonitis (HP). This condition, also known as bird fancier’s lung, is an inflammatory response in the lungs caused by inhaling organic dust, including bird feathers and droppings.

In kids, whose immune systems are still developing, the reaction can be more severe. The inhaled particles can cause the immune system to reac.