The onset of symptoms, reported for 92 (98%) patients, occurred at a median of two (1-3) days before admission to hospital. The most frequently reported symptoms at admission were cough in 75 (80% of the 94 children), fever in 73 (78%), rhinorrhea in 48 (51%), and refusal of food or drink in 36 (38%) cases ( Table 1 ). The most frequent diagnoses were upper respiratory tract infection in 84 (89%) children, bronchitis in 20 (21%; including nine (10%) cases of obstructive bronchitis), and pneumonia in 16 (17%) children, including one (1%) case of secondary bacterial pneumonia. Other reported diagnoses were fever convulsion in seven (7%), laryngitis/croup in six (6%), and otitis media in three (3%) children (multiple diseases per patient possible).