Immunogenicity and Safety of Seasonal Influenza Vaccination in Patients with Classic Kaposi's Sarcoma  Monica Cappelletti, Adriano Taddeo, Elena Colombo,

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Immunogenicity and Safety of Seasonal Influenza Vaccination in Patients with Classic Kaposi's Sarcoma  Monica Cappelletti, Adriano Taddeo, Elena Colombo, Lucia Brambilla, Monica Bellinvia, Fabrizio Pregliasco, Maria L. Villa, Silvia Della Bella  Journal of Investigative Dermatology  Volume 132, Issue 10, Pages 2414-2421 (October 2012) DOI: 10.1038/jid.2012.151 Copyright © 2012 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 1 Immunogenicity of licensed influenza vaccination. (a) Seroprotection and (b) seroconversion rates against A/Brisbane/59/2007 (H1N1), A/Brisbane/10/2007 (H3N2), and B/Florida/4/2006 (B) strains were determined by assessing hemagglutination-inhibition (HAI) antibody titers in 44 healthy controls (white bars) and 46 classic Kaposi's Sarcoma (cKS) patients (gray bars), before and 4 and 12 weeks after influenza vaccination. *P<0.05, **P<0.01, and ***P<0.001 intra-group 4-week and 12-week post-vaccination versus pre-vaccination; #P<0.05 pre-vaccination cKS versus controls. Journal of Investigative Dermatology 2012 132, 2414-2421DOI: (10.1038/jid.2012.151) Copyright © 2012 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 2 Changes in antinuclear autoantibody (ANA) titers after influenza vaccination. ANAs were monitored in the sera before and after immunization in 44 healthy controls and 46 classic Kaposi's Sarcoma (cKS) patients. The figure shows the number of subjects who became positive (ANA titer ≥1:80) or showed an increased ANA titer after vaccination compared with pre-vaccination; the number of subjects who were positive for ANA before vaccination and maintained their positive ANA titer unchanged or decreased after vaccination; the number of subjects who were initially negative for ANA and persisted negative after vaccination. Journal of Investigative Dermatology 2012 132, 2414-2421DOI: (10.1038/jid.2012.151) Copyright © 2012 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 3 Changes in human herpesvirus-8 (HHV-8) DNA levels in classic Kaposi's Sarcoma (cKS) patients after influenza vaccination. Forty-six cKS patients underwent measurement of plasmatic HHV-8 DNA before and after immunization. The Figure shows the number of subjects who after vaccination presented a virological rebound (defined as an increase of at least 3-fold from pre-vaccination); the number of subjects who had detectable HHV-8 DNA (i.e., above the detection limit of 250gEqml−1) before vaccination and maintained their HHV-8-DNA levels unchanged after vaccination; and the number of subjects who maintained undetectable HHV-8-DNA before and after influenza vaccination. Journal of Investigative Dermatology 2012 132, 2414-2421DOI: (10.1038/jid.2012.151) Copyright © 2012 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 4 Changes in anti-human herpesvirus-8 (HHV-8) titers after influenza vaccination. Anti-HHV-8-specific IgG antibodies were measured in classic Kaposi's Sarcoma (cKS) patient sera before and after immunization. All patients (n=46) had positive anti-HHV-8 IgG antibodies. The number of patients who after vaccination presented an increase of anti-HHV-8 IgG antibodies and the number of patients who maintained unchanged post- to pre-vaccination levels of antibodies are shown. Journal of Investigative Dermatology 2012 132, 2414-2421DOI: (10.1038/jid.2012.151) Copyright © 2012 The Society for Investigative Dermatology, Inc Terms and Conditions