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Articles @ Virology |
Ying Zhao, Huan Yu, Ni Li, GuoHua Huang
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Abstract
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Homologues of Heliothis virescens ascovirus 3h
(HvAV-3h) orf21 are
found in 9 completely sequenced members of the ascoviruses, but
so far their functions are unknown. Here, orf21 (3h-21) was
cloned in-frame into a pET-28a bacterial expression vector. The
fusion protein produced by this construct was used for the
preparation of a polyclonal antiserum. RT-PCR analysis showed a
single transcript of 3h-21 of
approximately 0.7kb was transcribed beginning at 24h
post-infection in infected Helicoverpa
armigera larvae.
Western blot analysis of extracts from HvAv-3h-infected Helicoverpa
armigera larvae
detected a 25.6 kDa protein late in infection. This antiserum
also reacted with a 25.6 kDa protein in purified virions of
HvAv-3h. The protein was not extensively modified
post-translation. Immunoelectron microscopy confirmed that the
3H-21 is associated with the structure of HvAV-3h virions.
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Keywords
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Ascovirus, HvAV-3h, Structural Protein, 3H-21
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Full Text:
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DOI: https://doi.org/10.21092/jav.v8i4.114
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Jia Li, Leitai Shi, Yunpeng Wang, Shouchun Cao
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Abstract
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Objective To
analyze the current epidemiological characteristics of
rabies in China, grasp the law of epidemic changes, and
provide scientific basis for rabies prevention and control
strategies in China.
Methods The data of human
rabies prevention and control in China were systematically
collected, combined with the genetic sequences of rabies
virus street virus epidemic strains in various provinces of
China, and statistical and molecular biological methods were
used for statistics and analysis.
Results The number of rabies
cases and deaths in China has decreased year by year. At
present, the main method of human rabies transmission in
China is dog injury. Post-exposure treatment showed an
increase in the rate of self-treatment, a decline in the
overall immunity rate of the vaccine, and an increase in the
rate of passive immunity. Human rabies vaccines are
currently available to meet vaccination needs. In addition,
the immune rates of dogs and cats did not change
significantly. The rabies street virus strains in China are
mainly divided into 6 species including China ¢ñ-China ¢ö.
Conclusion In terms of
infrastructure, it is still necessary to increase the number
of primary clinics, improve the professional capabilities of
medical staff, and strengthen publicity and education on
rabies prevention and treatment. In the areas with high
incidence of cases, vaccines similar to street strain should
be selected for immunization of human and animal.
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Keywords
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Rabies, Prevention and Control
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Full Text:
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DOI: https://doi.org/10.21092/jav.v8i4.115¡¡ |
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Editorial Team |
Honorary Chief Editor
Prof. Farhad Imani :ViraSource Laboratories, North Carolina,27709, USA
Chief Editor
Dr. Wenbo Zhang:North Carolina State Laboratory Of Public Health,
Raleigh, North Carolina, USA
Dr. Kongxin Hu:Chinese Academy of Inspection and Quarantine, China
Associate Chief Editor
Dr. Tengchuan Jin:
University of Science and Technology of China
Dr. Tao Wang : School of Life Sciences,Tianjin University , China
Dr. Fushun
Zhang: The University of Texas Health Science Center at San Antonio,
Texas, USA
Managing Director
Dr. Kai Wang:Institut Pasteur of Shanghai, Chinese Academy of Sciences,
China
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