Fig. 5From: Hepatitis a virus infection in Central-West Tunisia: an age structured model of transmission and vaccination impactTime evolution of susceptible fraction upon start of vaccine strategies. Scenario 1: Vaccination at the age of 12 months and at the age of six during a period of 6 years. Scenario 2: One dose at the age of 12 months. Scenario 3: One dose at 6 years of ageBack to article page