A 0.5 mL single-dose delivered via syringe using single-dose vials. The active substance is prepared from influenza viruses propagated in embryonated chicken eggs. Fluzone® for intramuscular injection is approved for persons 6 months and older and will be purchased from Sanofi Pasteur, Inc.

The fold-difference (defined as a ratio to describe the change from baseline to Day 28) in geometric mean serum HAI antibody titers against influenza H1N1 between non-AD and moderate to severe AD participants, following a single dose of the seasonal 2012-2013 Fluzone Intradermal vaccine. A fold-difference of greater than or equal to 1 indicated an increase in HAI antibody titers against influenza H1N1 as a result of vaccination; therefore, higher numbers indicate a greater probability of avoiding disease if infected with influenza H1N1. Participants who achieved seroprotection prior to vaccination were excluded from the analysis, which is defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1.

The fold-difference (defined as a ratio to describe the change from baseline to Day 28) in geometric mean serum HAI antibody titers against influenza H3N2 between non-AD and moderate to severe AD participants, following a single dose of the seasonal 2012-2013 Fluzone Intradermal vaccine. A fold-difference of greater than or equal to 1 indicated an increase in HAI antibody titers against influenza H3N2 as a result of vaccination; therefore, higher numbers indicate a greater probability of avoiding disease if infected with influenza H3N2 Participants who achieved seroprotection prior to vaccination were excluded from the analysis, which is defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2.

The difference in the percentage of moderate to severe AD participants that achieved seroprotection against influenza B at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of moderate to severe AD participants that achieved seroprotection against influenza H1N1 at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of moderate to severe AD participants that achieved seroprotection against influenza H3N2 at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of participants that achieved seroconversion at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza B compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of participants that achieved seroconversion at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H1N1 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of participants that achieved seroconversion at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H3N2 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of moderate to severe AD participants that achieved seroconversion at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza B compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of moderate to severe AD participants that achieved seroconversion at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H1N1 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

The difference in the percentage of moderate to severe AD participants that achieved seroconversion at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H3N2 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Moderate to severe atopic dermatitis (AD) participants who received a single dose of the seasonal 2012-2013 Fluzone (Intramuscular) influenza vaccine from 0.5 mL single dose vials.

Non-atopic dermatitis (AD) controls who received a single dose of the seasonal 2012-2013 Fluzone (Intramuscular) influenza vaccine from 0.5 mL single dose vials

Mild atopic dermatitis (AD) participants who received a single dose of the seasonal 2012-2013 Fluzone Intradermal influenza vaccine via a single-dose pre-filled microinjection system (0.1mL).

Total of all reporting groups

The number of participants that achieved seroprotection against influenza B at baseline prior to vaccination. Seroprotection is defined as having a serum hemagglutination-inhibition [HAI] antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B. The goal of the study was to examine the immune response to influenza vaccination against influenza B. Participants who were already seroprotected against influenza B prior to vaccination were excluded from all relevant analyses for influenza B.

The number of participants that achieved seroprotection against influenza H1N1 at baseline prior to vaccination. Seroprotection is defined as having a serum hemagglutination-inhibition [HAI] antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1. The goal of the study was to examine the immune response to influenza vaccination against influenza H1N1. Participants who were already seroprotected against influenza H1N1 prior to vaccination were excluded from all relevant analyses for influenza H1N1.

The number of participants that achieved seroprotection against influenza H3N2 at baseline prior to vaccination. Seroprotection is defined as having a serum hemagglutination-inhibition [HAI] antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2. The goal of the study was to examine the immune response to influenza vaccination against influenza H3N2. Participants who were already seroprotected against influenza H3N2 prior to vaccination were excluded from all relevant analyses for influenza H3N2.

The difference in the percentage of participants that achieved seroprotection against influenza H1N1 at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H1N1 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of participants that achieved seroprotection against influenza H3N2 at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H3N2 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The fold-difference (defined as a ratio to describe the change from baseline to Day 28) in geometric mean serum HAI antibody titers against influenza B between non-AD and moderate to severe AD participants, following a single dose of the seasonal 2012-2013 Fluzone Intradermal vaccine. A fold-difference of greater than 1 indicated an increase in HAI antibody titers against influenza B as a result of vaccination; therefore, higher numbers indicate a greater probability of avoiding disease if infected with influenza B. Participants who achieved seroprotection (which is defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B) prior to vaccination were excluded from the analysis.

Subset of the per protocol population that were not seroprotected against influenza B at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The fold-difference (defined as a ratio to describe the change from baseline to Day 28) in geometric mean serum HAI antibody titers against influenza H1N1 between non-AD and moderate to severe AD participants, following a single dose of the seasonal 2012-2013 Fluzone Intradermal vaccine. A fold-difference of greater than or equal to 1 indicated an increase in HAI antibody titers against influenza H1N1 as a result of vaccination; therefore, higher numbers indicate a greater probability of avoiding disease if infected with influenza H1N1. Participants who achieved seroprotection prior to vaccination were excluded from the analysis, which is defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1.

Subset of the per protocol population that were not seroprotected against influenza H1N1 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations

The fold-difference (defined as a ratio to describe the change from baseline to Day 28) in geometric mean serum HAI antibody titers against influenza H3N2 between non-AD and moderate to severe AD participants, following a single dose of the seasonal 2012-2013 Fluzone Intradermal vaccine. A fold-difference of greater than or equal to 1 indicated an increase in HAI antibody titers against influenza H3N2 as a result of vaccination; therefore, higher numbers indicate a greater probability of avoiding disease if infected with influenza H3N2 Participants who achieved seroprotection prior to vaccination were excluded from the analysis, which is defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2.

Subset of the per protocol population that were not seroprotected against influenza H3N2 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of moderate to severe AD participants that achieved seroprotection against influenza B at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza B at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of moderate to severe AD participants that achieved seroprotection against influenza H1N1 at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H1N1 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of moderate to severe AD participants that achieved seroprotection against influenza H3N2 at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroprotection is defined as having a serum hemagglutination-inhibition (HAI) antibody titer of 1:40 or greater, which represents a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2. Participants who achieved seroprotection prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroprotection at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H3N2 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of participants that achieved seroconversion at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza B compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza B at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of participants that achieved seroconversion at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H1N1 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H1N1 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of participants that achieved seroconversion at Day 28 between non-AD and moderate to severe AD participants, following a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H3N2 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H3N2 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of moderate to severe AD participants that achieved seroconversion at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza B compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza B, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza B at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of moderate to severe AD participants that achieved seroconversion at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H1N1 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H1N1, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H1N1 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

The difference in the percentage of moderate to severe AD participants that achieved seroconversion at Day 28 between those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone Intradermal vaccine and those given a single dose (0.1mL) of the seasonal 2012 - 2013 Fluzone (Intramuscular) vaccine. Seroconversion is defined as a 4-fold or greater increase in serum hemagglutination-inhibition [HAI] antibody titers against influenza H3N2 compared to baseline values, which represents the minimum intended effect of vaccination. Participants who achieved seroprotection, defined as having a sufficient antibody amount to avoid disease in half of the individuals infected with influenza H3N2, prior to vaccination were excluded from the analysis. The goal was to examine whether there was a difference between the two groups in the percentage of participants who achieved seroconversion at Day 28 who were not seroprotected prior to vaccination.

Subset of the per protocol population that were not seroprotected against influenza H3N2 at baseline. These participants received a full dose of vaccine, provided blood samples on Day 0 and Day 28, and had no major protocol deviations.

Moderate to severe atopic dermatitis (AD) participants who received a single dose of the seasonal 2012-2013 Fluzone Intradermal influenza vaccine via a single-dose pre-filled microinjection system (0.1mL).

Moderate to severe atopic dermatitis (AD) participants who received a single dose of the seasonal 2012-2013 Fluzone (Intramuscular) influenza vaccine from 0.5 mL single dose vials.

Non-atopic dermatitis (AD) controls who received a single dose of the seasonal 2012-2013 Fluzone (Intramuscular) influenza vaccine from 0.5 mL single dose vials

Mild atopic dermatitis (AD) participants who received a single dose of the seasonal 2012-2013 Fluzone Intradermal influenza vaccine via a single-dose pre-filled microinjection system (0.1mL).