<p>Seroprevalence of pre and post pandemic sera by age-group, using the haemoagglutination inhibition (HI) method and assuming individuals to be seropositive when HI titre is ≥40.</p
<p>Significant differences in the frequency of autoantibody titers:</p><p>*<20 v. 20–40;</p><p>**20–...
<p>Data are numbers, percentages (95% confidence intervals) and ALR parameter test <i>P</i> value fo...
a<p>Estimates were weighted using the adjusted sample weight for this sample, WTH1N1.</p>b<p>Assumin...
<p>(A) Pre-pandemic seroprevalence (green), post-pandemic seroprevalence (red) and difference betwee...
<p>Data are numbers, percentages (100 * number seroconverters/number tested (95% confidence interval...
<p>Seropositivity is measured for the total study population divided into 14 different age groups. E...
<p>The horizontal axis shows the age groups and the vertical axis shows seropositive individuals (%)...
<p>Age-adjusted seroprevalence (blue solid lines) using appropriate reversible catalytic models. The...
†<p>Subjects, sample size and sampling period refer to those after observing the peak incidence of H...
<p>Estimated number of seropositive individuals and age-standardized population seroprevalence to in...
Rate of decline of antibody titers to pandemic by hemagglutination so that none of the elderly had H...
<p>The percentage of seroreactivity of pediatric sera (n = 74; 2–11 years) and sera of healthy adole...
Proportion of clusters expected to reach seroprevalence levels of 50%, 70% and 90% by year of age, b...
<p>For each group the seroprevalence, i.e. the fraction with a titer higher than the cut-off, is sho...
<p>A, Proportion of subjects that were HI antibody-positive versus-negative according to age ranges....
<p>Significant differences in the frequency of autoantibody titers:</p><p>*<20 v. 20–40;</p><p>**20–...
<p>Data are numbers, percentages (95% confidence intervals) and ALR parameter test <i>P</i> value fo...
a<p>Estimates were weighted using the adjusted sample weight for this sample, WTH1N1.</p>b<p>Assumin...
<p>(A) Pre-pandemic seroprevalence (green), post-pandemic seroprevalence (red) and difference betwee...
<p>Data are numbers, percentages (100 * number seroconverters/number tested (95% confidence interval...
<p>Seropositivity is measured for the total study population divided into 14 different age groups. E...
<p>The horizontal axis shows the age groups and the vertical axis shows seropositive individuals (%)...
<p>Age-adjusted seroprevalence (blue solid lines) using appropriate reversible catalytic models. The...
†<p>Subjects, sample size and sampling period refer to those after observing the peak incidence of H...
<p>Estimated number of seropositive individuals and age-standardized population seroprevalence to in...
Rate of decline of antibody titers to pandemic by hemagglutination so that none of the elderly had H...
<p>The percentage of seroreactivity of pediatric sera (n = 74; 2–11 years) and sera of healthy adole...
Proportion of clusters expected to reach seroprevalence levels of 50%, 70% and 90% by year of age, b...
<p>For each group the seroprevalence, i.e. the fraction with a titer higher than the cut-off, is sho...
<p>A, Proportion of subjects that were HI antibody-positive versus-negative according to age ranges....
<p>Significant differences in the frequency of autoantibody titers:</p><p>*<20 v. 20–40;</p><p>**20–...
<p>Data are numbers, percentages (95% confidence intervals) and ALR parameter test <i>P</i> value fo...
a<p>Estimates were weighted using the adjusted sample weight for this sample, WTH1N1.</p>b<p>Assumin...