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Issue of Virologica Sinica
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Review
Review
Review
Hepatitis B virus(HBV) DNA purified from the cloned plasmid pHBV_1 and labelled by nick-translation with α-~(32)p dCTP was as probe, which can be hybridized specifically with HBV DNA. The minimum amount about 0.2pg of DNA has been detected by high specific activity probes. The range of the isotope ..., Abstract
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Review
79 cervical lesions(50 cervical cancer and 29 cervical erosion) were studied by dot hybridization using five DNA probes: HPV 16, 18, 11 and HSV-2N/BglⅡ, HSV-2 L/HindⅢ. Among them, the positive percentage of HPV 16, 18 and 11 in cervical carcinoma was 44%, 12% and 4%, respectively; but 14%, 7% ..., Abstract
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Review
Two monoclonal antibodies(McAb) were obtained by fusion of SP2/O myeloma cells with spleen cells from Balb/c mice. They were respectively immunized with the Li strain and the hemagglutinin(HAN) from the Chen strain of EHFV. Two fusions had been done. The growth rate of hybridoma was 97.5% and 60%. ..., Abstract
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Review
With the microcullured by C_6/36 clone of Aedes Albopictus cells, 35 dengue virus strain were isolated from patients with dengue fever in Hainan island. These virus were identified as type 2 virus by means of four dengue virus type-specific monoclonal antibody in an indirect immunofluorescene ..., Abstract
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Review
A dengue type 4 virus Ban18 strain, isolated from non-epidemic area in China, was chosen for attenuation by consecutive passages in primary hamster kidney tissue culture(PHKTC). During the course of passage from 20 to 70, the CPE in PHKTC became more and more apparent and a high virus titer up to ..., Abstract
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Review
Indirect hemagglutination assay, enzyme-linked immunosorbent assay and co-agglutination test were applied to determine antigen and antibody of ADRV, the results of which were the same. Serum Ab to ADRV in patients with epizootic diarrhea persisted for over half a year. The positive rates of the ..., Abstract
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Review
Two strains, N and F, of nuclear polyhedrosis virus were isolated from infected Leucania separata in different places. The morphology of these two rains is identical, but their biochemical properties are different. The SDS-PAGE map showed 17 polypepties bands for N strain and 19 bands for F strain. ..., Abstract
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Review
In 1978,it was widely surpising that the total tobacco output of Fong Yan County reduced by 92.3% reslting from the epidemic of tobacco virus diseases in the tobacco areas of Anhui Province.The four viruses,i.e.CMV,TMV,PVY and PVX, were isolated from 552 virusinfected tobacco materials from sixteen ..., Abstract
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Review
13 strains of Gaeumannonmyces graminis in 10 different vegetative compatible groups(V-C group) had been collected from different areas in China and the virus particles ranging from 23-36 nm in diameter were obtained. Double stranded RNA from virus particles were detected by polyacrylamide gel ..., Abstract
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Review
During Dec 1984 and 1985, lungs of 78 dogs collected from EHF endemic areas in Anhui Province were detected for EHF antigen by IFAT, 5 were positive, the positivity rates were 6.4%. Two strains of EHFV were isolated from EHF antigen-positive lung tissue.These results indicate that dogs can ..., Abstract
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Review
ELISA and EIA as well as NT in detecting B virus related antibody of 84 Rhesus monkey sera were compared.The results showed that there were 50 positive specimens(59.5%)in ELISA and EIA and 45 positive specimens(53.6%) in NT, 71 specimens of the 84 tested specimens were in the same result by 3 ..., Abstract
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Review
Blood samples and liver biopsy sections of 111 Marmota sibirica were studied for WHV infection. The scrum samples were assayed for HBV surface antigen, anti-HBs and HBV-DNA. Some of them were observed morphologically by IEM. 22 of 111 scra were positive for HBV surface antigen(19.8%), one positive ..., Abstract
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Review
Immuno-double diffusion and ELISA were applied in studying serological comparision among seven different isolates of rabbit hemorrhagic disease virus(RHDV). In the present paper, it is demanstrated that there are same serological relationship among seven different isolates of RHDV, and there are ..., Abstract
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Review
Four strains of porcine rotavirus isolated from the feces of diarrheal piglets in Jiangsu Province were cultivated successfully and formed distinguishable plaques in the continuous Rhesus monkey cell line(MA104). Three of the four strains(Na86, Ning71, Jiang150) usually yielded both large and small ..., Abstract
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Review
We have studied RPHA and RPHI test using anti-EHFV antibody sensitized human red blood cell for detecting EHF antigen and antibody. The antigen used in RPHI was successfully prepared with infected mouse brains extracted by pH 9.0 borate buffered saline(BBS), providing a method of simplicity for ..., Abstract
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Review
The additivity tests between seven monoclonal antibodies to Shanghai Isolate of Ribgrass Mosaic Virus were determined by ELISA method. Adding two non-labeling monoclonal antibodies to the same well coated by virus antigen separately, the amount of bound antibodies were measured and compared with ..., Abstract
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Review
Phosphate is usually used in purifying plant viruses, but phosphate buffer can form unspecific bands with some hosts during purification by agar-double diffusion. Unspecific bands often interfere with the determination of specific bands in detection of the plant viruses. The absorbing method can be ..., Abstract
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Review
HBsAg particles treated with pepsin and saponin can split up filiforms just like a tail. This phenomenon maybe indicate that there are linear links between the capsomers of HBsAg particles., Abstract
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