👉 Croup, also known as an acute bronchitis or a bronchitis with symptoms of coughing and difficulty breathing, is a common respiratory illness that affects millions of people worldwide. It typically presents with a high fever, chest pain, and difficulty in breathing when inhaled deeply. The symptoms can be severe enough to cause shortness of breath, coughing up mucus, or even pneumonia. Croup often starts as a viral infection but can also occur due to other respiratory infections like bron