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Due to waning levels of maternal antibodies (measles; enterovirus 71, EV71; and coxsackievirus A16, CoxA16), some infants may lose protection against infection prior to vaccination. Using a longitudinal design, we examine how maternal antibody levels evolve over time in infants prior to vaccination.In 2013–2014, we collected sera at ages 0, 3 and 6months from infants. We assayed for levels of measles...
Cervical cancer screening and existing health insurance schemes in China fall short of reaching women with prevention and treatment services, especially in rural areas where the disease burden is greatest. We conducted an extended cost-effectiveness analysis (ECEA) to evaluate public financing of HPV vaccination to prevent cervical cancer, adding new dimensions to conventional cost-effectiveness analysis...
Influenza caused substantial morbidity and mortality worldwide. The mortality burden caused by influenza has been under evaluation; however, data assessing this burden have been relatively sparse in tropical or subtropical regions. We estimated influenza-associated mortality in Guangzhou, China and assessed the excess mortality due to different influenza virus subtypes.We estimated influenza-associated...
Prophylactic HPV vaccines target young adolescents to prevent related cervical lesions and even genital warts prior to onset of sexual activity. Parental consent is often essential for success of vaccination program for this age group. We conducted a national multicenter study to explore the acceptability of HPV vaccination among parents of young adolescents and associated factors in relevant parent...
The Lanzhou lamb rotavirus (LLR) vaccine has been in use in China since 2000. This study evaluated this vaccine's effectiveness using a case–control design in Guangzhou. In the study area, there were 3130 laboratory-confirmed rotavirus gastroenteritis cases in children between 2 and 35 months old from 2009 to 2011. A total of 3607 controls were also enrolled in this study. Of the subjects, 970 (14...
During the 2010 Southern Hemisphere (SH) influenza season, there was an unexpected increase in the number of febrile reactions reported in the paediatric population in Australia shortly after vaccination with the CSL 2010 trivalent influenza vaccine (TIV) compared to previous seasons. A series of scientific investigations were initiated to identify the root cause of these adverse events, including...
Recipients of influenza A (H1N1) vaccine in 1976 had an increased risk for the neurologic disorder Guillain-Barré syndrome (GBS). Anti-ganglioside antibodies, which might be associated with the development of GBS, were previously reported to be induced in mice immunized with an H1N1 vaccine of 1976 or another influenza vaccine. In this study we analyzed anti-ganglioside antibodies in human subjects...
A trivalent native outer membrane vesicle vaccine that has potential to provide broad based protection against Neisseria meningitidis serogroup B strains has been developed. Preliminary immunogenicity studies in mice showed that the vaccine was capable of inducing an effective broad based bactericidal antibody response against N. meningitidis serogroup B strains. These findings in mice have been repeated...
The available information about maintaining effective immunity after hepatitis B virus (HBV) vaccination in dialysis patients is limited. The aim of this study was to determine whether a difference exists in the persistence of immunity between hemodialysis (HD) and peritoneal dialysis (PD) patients. We compared the decay rate of hepatitis B surface antibody (anti-HBs) titers after HBV vaccination...
To obtain sero-epidemiological profile and develop optimal strategies to promote measles elimination, we conducted a measles seroprevalence study using stratified sampling method in Guangzhou, southern China in 2008. 4036 samples were analyzed by the enzyme-linked immunosorbent assay method and the overall sero-positive rate of measles antibody was 70.6% (95% CI 69.2–72.0%). Positive seroprevalences...
We sought to determine the vaccine effectiveness (VE) of Lanzhou lamb rotavirus (LLR) vaccine against rotavirus gastroenteritis in children <5 requiring hospitalization. Children hospitalized 2002–2004 with rotavirus gastroenteritis were matched by gender, age and community to 838 controls. VE was calculated for one or more doses of LLR vaccine with 95% confidence intervals (CI). For one dose versus...
Foot-and-mouth disease (FMD) is a highly contagious disease in cloven-hoofed animals and can cause a considerable socio-economic loss for affected countries. Interleukin-18 (IL-18) is a pleiotropic cytokine and plays important role in both the development of a functional immune system as well as the response of the organism to infection. In the present study, bovine IL-18 (BoIL-18), Foot-and-mouth...
As a highly contagious disease in cloven-hoofed animals, foot-and-mouth disease virus (FMDV) may cause a considerable social-economic loss in those countries affected. IFN-γ has a wide range of antiviral and immune modulating functions. Thus, to study the immune enhancing effects of recombinant Bovine IFN-γ (rBoIFN-γ) on a recombinant FMDV vaccine, BoIFN-γ, FMDV VP1 and BoIFN-γ/VP fusion genes were...
A mass hepatitis B vaccination program began in Taiwan in 1984. In order to determine the immune status of hepatitis B virus (HBV) infection among preschool children, a total of 25 kindergartens in 20 townships and metropolitan precincts in central Taiwan were randomly selected through stratified sampling. Serum specimens of 2130 healthy preschool children aged 2-6 years old were screened for the...
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