Results of influenza A/H1N1pdm serology in 211 crew members of the Italian military ship Scirocco.

<p>Results of influenza A/H1N1pdm serology in 211 crew members of the Italian military ship Scirocco.</p

Distribution of acute respiratory illness (ARI) and suspected A/H1N1pdm cases, according to the time of symptoms onset and to the results of Influenza A/H1N1pdm-specific serological tests.

<p><u>Black bars</u>: seropositives; <u>gray bars</u>: seronegatives.</p

Results of influenza A/H1N1pdm serology in 211 crew members of the Italian military ship Scirocco, according to respiratory illness reported during the cruise.

<p>Results of influenza A/H1N1pdm serology in 211 crew members of the Italian military ship Scirocco, according to respiratory illness reported during the cruise.</p

Proportion of serum samples with contemporary HAI and CF titers ≥1∶10 in 4 control groups.

<p><b>Group 1: T0 and T1:</b> paired acute and convalescent serum samples from patients with A/H1N1pdm infection confirmed by RT-PCR.</p><p><b>Group 2:</b> serum samples submitted to our laboratory for HIV antibody screening and resulted HIV-negative in September 2008, from males matching the age group represented in the study population.</p><p><b>Group 3:</b> serum samples submitted to our laboratory for HIV antibody screening and resulted HIV-negative in September 2009, from males matching the age group represented in the study population.</p><p><b>Group 4:</b> serum samples submitted to our laboratory for HIV antibody screening and resulted HIV-negative, 2 months after the pandemic influenza peak in Italy (February 2010).</p

Distribution of cases according to the time of symptoms onset.

<p><u>Black bar</u>: acute respiratory illness (ARI) episodes; <u>gray bars</u>: episodes fulfilling suspected A/H1N1pdm case definition. The arrows indicate the arrival to the stopover port. Location of docking sites: Beirut, Lebanon; Lymassol, Cyprus; Mersin, Turkey.</p