Abstract: The present disclosure provides, among other things, a single-dose vaccine composition that includes a chitosan adjuvant and HPV virus-like particles (VLPs) of at least one type of human papillomavirus (HPV) selected from the group consisting of HPV types: 6, 11, 16, 18, 26, 31, 33, 35, 39, 45, 51, 52, 53, 55, 56, 58, 59, 66, 68, 73, and 82, where the single-dose vaccine composition provides enhanced or comparable HPV vaccine response in comparison to a similar multiple-dose vaccine formulated without such chitosan adjuvant.

Abstract: The invention provides an inactivated varicella zoster virus (VZV), and compositions and vaccines comprising said inactivated VZV, wherein the infectivity of the VZV is undetectable and wherein the inactivated VZV induces an immune response against VZV when administered to a patient. In embodiments of the compositions described herein, the VZV is inactivated with gamma radiation. The invention also provides a method of preparing an inactivated VZV vaccine, the method comprising gamma irradiating a sample comprising a VZV using from about 5 kGy to about 50 kGy of gamma radiation. Also provided by the invention herein is a method of treatment of or immunization against HZ or other disease associated with the reactivation of VZV, the method comprising administering to a subject a vaccine or pharmaceutical composition comprising a therapeutically effective amount of an inactivated VZV and a pharmaceutically acceptable carrier, wherein the VZV is inactivated by gamma irradiation.

Abstract: The invention provides an inactivated varicella zoster virus (VZV), and compositions and vaccines comprising said inactivated VZV, wherein the infectivity of the VZV is undetectable and wherein the inactivated VZV induces an immune response against VZV when administered to a patient. In embodiments of the compositions described herein, the VZV is inactivated with gamma radiation. The invention also provides a method of preparing an inactivated VZV vaccine, the method comprising gamma irradiating a sample comprising a VZV using from about 5 kGy to about 50 kGy of gamma radiation. Also provided by the invention herein is a method of treatment of or immunization against HZ or other disease associated with the reactivation of VZV, the method comprising administering to a subject a vaccine or pharmaceutical composition comprising a therapeutically effective amount of an inactivated VZV and a pharmaceutically acceptable carrier, wherein the VZV is inactivated by gamma irradiation.

Abstract: The invention provides an inactivated varicella zoster virus (VZV), and compositions and vaccines comprising said inactivated VZV, wherein the infectivity of the VZV is undetectable and wherein the inactivated VZV induces an immune response against VZV when administered to a patient. In embodiments of the compositions described herein, the VZV is inactivated with gamma radiation. The invention also provides a method of preparing an inactivated VZV vaccine, the method comprising gamma irradiating a sample comprising a VZV using from about 5 kGy to about 50 kGy of gamma radiation. Also provided by the invention herein is a method of treatment of or immunization against HZ or other disease associated with the reactivation of VZV, the method comprising administering to a subject a vaccine or pharmaceutical composition comprising a therapeutically effective amount of an inactivated VZV and a pharmaceutically acceptable carrier, wherein the VZV is inactivated by gamma irradiation.