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RISS 인기검색어
- 검색키워드
- 저자 : Norbert John Robles (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
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Robles, Norbert John C.,Han, Hae Jung,Park, Su-Jin,Choi, Young Ki 대한백신학회 2018 Clinical and Experimental Vaccine Research Vol.6 No.1
<P>Over the past ten years there has been a marked increase in cases of severe fever and thrombocytopenia syndrome in East Asia. This tick-borne hemorrhagic fever presents along with clinical signs including high fever and leukopenia. In addition to humans, the virus has also been detected with shared genetic homology in farm animals including goats, cattle, horses, and pigs. Furthermore, several genotypes of severe fever and thrombocytopenia syndrome virus (SFTSV) are currently co-circulating between humans and animals. In China, where the virus was first detected in rural areas in 2009, the SFTSV mortality rate has been reported to be as 6% and higher than 30%, especially in immuno-compromised patients. Moreover, this virus has been isolated in neighbor countries including Japan and South Korea where the fatality rates in 2015 were more than 30% in both countries. In this review, we comprehensively summarize the virology, genotypes, pathogenesis, and epidemiology of SFTSV infection in humans and animals. Currently, a collaborative global approach against SFTSV infection is being undertaken; however, the need for continuous disease surveillance and production of an effective vaccine is imperative as this virus may lead to an epidemic of irreversible status in both humans and animals.</P>
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Norbert John C. Robles,한혜정,박수진,최영기 대한백신학회 2018 Clinical and Experimental Vaccine Research Vol.7 No.1
Over the past ten years there has been a marked increase in cases of severe fever and thrombocytopenia syndrome in East Asia. This tick-borne hemorrhagic fever presents along with clinical signs including high fever and leukopenia. In addition to humans, the virus has also been detected with shared genetic homology in farm animals including goats, cattle, horses, and pigs. Furthermore, several genotypes of severe fever and thrombocytopenia syndrome virus (SFTSV) are currently co-circulating between humans and animals. In China, where the virus was first detected in rural areas in 2009, the SFTSV mortality rate has been reported to be as 6% and higher than 30%, especially in immuno-compromised patients. Moreover, this virus has been isolated in neighbor countries including Japan and South Korea where the fatality rates in 2015 were more than 30% in both countries. In this review, we comprehensively summarize the virology, genotypes, pathogenesis, and epidemiology of SFTSV infection in humans and animals. Currently, a collaborative global approach against SFTSV infection is being undertaken; however, the need for continuous disease surveillance and production of an effective vaccine is imperative as this virus may lead to an epidemic of irreversible status in both humans and animals.
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Efficacy of A/H1N1/2009 split inactivated influenza A vaccine (GC1115) in mice and ferrets
Hae Jung Han,Min-Suk Song,Su-Jin Park,Han Yeul Byun,Norbert John C. Robles,Suk-Hoon Ha,Young-Ki Choi 한국미생물학회 2019 The journal of microbiology Vol.57 No.2
To evaluate the efficacy of a non-adjuvant A/H1N1/2009 influenza A vaccine (GC1115), we demonstrated the immunogenicity and protective efficacy of GC1115 in mouse and ferret models. The immunogenicity of GC1115 was confirmed after intramuscular administration of 1.875, 3.75, 7.5, and 15 μg hemagglutinin antigen (HA) in mice and 7.5, 15, and 30 μg HA in ferrets at 3-week intervals. A single immunization with GC1115 at HA doses > 7.5 μg induced detectable seroconversion in most mice, and all mice given a second dose exhibited high antibody responses in a dose-dependent manner. The mice in the mock (PBS) and 1.875 μg HA immunized groups succumbed by 13 days following A/California/ 04/09 infection, while all mice in groups given more than 3.75 μg HA were protected from lethal challenge with the A/California/04/09 virus. In ferrets, although immunization with even a single dose of 15 or 30 μg of HA induced detectable HI antibodies, all ferrets given two doses of vaccine seroconverted and exhibited HI titers greater than 80 units. Following challenge with A/California/04/09, the mock (PBS) immunized ferrets showed influenza-like clinical symptoms, such as increased numbers of coughs, elevated body temperature, and body weight loss, for 7 days, while GC1115- immunized ferrets showed attenuated clinical symptoms only for short time period (3–4 days). Further, GC1115-immunized ferrets displayed significantly lower viral titers in the upper respiratory tract (nasal cavity) than the mock vaccinated group in a dose-dependent manner. Taken together, this study demonstrates the immunogenicity and protective efficacy of GC1115 as a non-adjuvanted vaccine.
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유민아,정혜원,박수진,김영일,권혁일,김은하,시영재,유광민,Norbert John Robles,한혜정,최영기 대한백신학회 2018 Clinical and Experimental Vaccine Research Vol.7 No.1
To develop the large scale serological assay for severe fever with thrombocytopenia syndrome virus (SFTSV) infection, we evaluated two different enzyme-linked immunosorbent assay (ELISA) methods using nucleocapsid protein (NP) and Gn proteins of CB1 (genotype B) SFTSV strains. The NP-based ELISA tests showed more sensitive with broad cross-reactivity between two different genotype A and B strains compared with those of Gn-based ELISA tests. However, Gn-based ELISA showed more genotype specificity and specificity. These result suggested that NP-based ELISA test could be applicable for general sero-prevalence studies of SFTSV infections, while Gn-based ELISA could be applicable for a certain specific genotype sero-prevalence study.
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Yu, Min-Ah,Jeong, Hye Won,Park, Su-Jin,Kim, Young-Il,Kwon, Hyeok-Il,Kim, Eun-Ha,Si, Young-Jae,Yu, Kwang Min,Robles, Norbert John,Han, Hae Jung,Choi, Young Ki 대한백신학회 2018 Clinical and Experimental Vaccine Research Vol.6 No.1
<P>To develop the large scale serological assay for severe fever with thrombocytopenia syndrome virus (SFTSV) infection, we evaluated two different enzyme-linked immunosorbent assay (ELISA) methods using nucleocapsid protein (NP) and Gn proteins of CB1 (genotype B) SFTSV strains. The NP-based ELISA tests showed more sensitive with broad cross-reactivity between two different genotype A and B strains compared with those of Gn-based ELISA tests. However, Gn-based ELISA showed more genotype specificity and specificity. These result suggested that NP-based ELISA test could be applicable for general sero-prevalence studies of SFTSV infections, while Gn-based ELISA could be applicable for a certain specific genotype sero-prevalence study.</P>
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