What do parents of toddlers, preschoolers and primary school children most often discuss? Childhood diseases! Cough, runny nose, fever - these are the subjects of concern for most mothers and fathers. Everyone is frightened by these formidable abbreviations - acute respiratory infections and acute respiratory viral infections, but even more frightened by the more formidable prospects looming behind them: otitis media, bronchitis, sore throat, pneumonia, antibiotics, hospital...