Fig. 1

a % of the monthly occurrences of the 2014–15 Influenza-like Illness (ILI) symptomatic cases as stated by the survey respondents from the total monthly occurrences mentioned, (c) % of the monthly occurrences of the 2014–15 seasonal influenza cases as stated by the survey respondents from the total monthly occurrences mentioned, (e) % of the weekly GP diagnosed ILI cases for the 2014–15 season from the total number of diagnosed ILIs throughout the whole season, (g) search by popularity of the Google search trends for the 2014–15 season using the key words ‘Influenza’, ‘Flu’ and ‘Cold’ in both Maltese and English language for searches that were carried out in Malta. Charts (b), (d), (f) and (h) have the same definitions as (a), (c), (e) and (g) respectively but for the 2015–16 season