“Swine flu” (officially called Influenza A H1N1) is back in the news again this season. Epidemiology and Disease Control Division (EDCD) has reported cases and deaths related to this flu, which at this point is not categorized as ‘national outbreak’. An outbreak refers to the situation when a large number of people fall sick due to a disease at a given time and place, at an above average rate. H1N1 falls under the category of seasonal influenza (‘flu’), along with many other subtypes of influenza virus. H1N1 is not a new disease in Nepal and in fact is seen every year around this time (June-Sep), during monsoon when transmission conditions are ideal for this virus. What we are currently observing is sporadic and regular occurrence of H1N1 virus in some parts of Nepal. Interestingly, Myanmar is also experiencing a similar situation but has categorized H1N1 as a ‘regular’ outbreak.