Bacteriophage is of a bacterial virus which is ubiquitous in nature.

They are oncogenic DNA virus with icosahedral capsids 40 nm~ 45 nm in diameter, containing three to four viral proteins and double strand, covalently closed, circular genomes approximately 5 000 bp in size.

病毒无囊膜，直径40nm～45nm，有3种～4种衣壳蛋白，基因组为约5000对核苷酸组成的双链闭合环状DNA。

Human papillomavirus is an oncogenic DNA virus and has more than 90 subtypes. High risk types ( HPV 16, 18, 33) are associated with many kinds of malignant neoplasms of head and neck.

人乳头状瘤病毒是一种致瘤性DNA病毒，在其90个亚型中以高危型HPV16，HPV18，HPV33等与人类头颈部恶性肿瘤关系密切。

The results indicated that there was no oncogene in L783-MuLV genome, L783-MuLV belonged to slow oncogenic virus.

这说明，L783小鼠白血病病毒基因组中不含有致癌病毒基因，此病毒属于慢性致瘤性逆转录病毒。

He assumed that the tumour cells, if they contained an oncogenic virus, should harbour viral DNA integrated into their genomes.

他认为，肿瘤细胞，如果它们载有致癌病毒，应港湾病毒DNA整合到它们的基因组。

A new microbial method for testing mumps virus

流行性腮腺炎病毒微生物检验方法的建立及应用

Analysis on genotype of mumps virus strain circulating in Beijing city

北京地区流行性腮腺炎病毒流行株基因型分析

Development of Rapid Real-Time RTPCR Method for Detection of Mumps Virus

流行性腮腺炎病毒荧光定量逆转录-聚合酶链反应快速检测方法的建立

Genetic Characteristics of Mumps Virus in China From 2006 to 2008

中国2006～2008年流行性腮腺炎病毒的基因特征分析

Expression of foreign genes in adult rats' central nervous system by use of defective herpes simplex virus type 1 vectors

利用缺陷型单纯疱疹病毒载体在大鼠中枢神经系统表达外源基因

The construction of a series of defective herpes simplex virus vectors

单纯疱疹病毒I型扩增子系列载体的构建

To this end, the design of the dozens of pairs of amplification primers for different proto-oncogene J subsets of avian leukemia virus chimeric molecules to the gag gene and the fps gene chimera molecule, and further amplified by the helper virus and defective virus wholly genome.

为此，设计了数十对针对不同原癌基因与J亚群禽白血病毒嵌合体分子的引物扩增到了gag基因与fps基因的嵌合体分子，并进一步扩增了辅助病毒和缺陷病毒的全基因组。

Occult hepatitis B virus infected donors exist in our country. And some features of them have been studied in our experiment.

我国献血者中有一定比例的隐性乙型肝炎感染者存在，并初步掌握了其血清学及分子生物学特点。

Occult hepatitis B virus infection in hemat-opoietic stem cell donors in a hepatitis B virus endemic area

乙型肝炎病毒流行区中造血干细胞供体的隐匿性乙型肝炎病毒的感染

Determining the Infection Rate Of Occult Hepatitis B Virus in Various Kinds of People by Nested-Polymerase Chain Reaction

巢式聚合酶链反应检测不同人群隐匿性乙型肝炎病毒感染

Clone of S gene in occult hepatitis B virus infection and construction of prokaryotic expression vector

隐匿性乙型肝炎病毒S基因的克隆及其表达载体的构建

Prevalence of occult hepatitis B virus infection in general adults

普通成年人群隐匿性乙型肝炎病毒感染情况分析

Comparative analysis between occult hepatitis C virus infection and chronic hepatitis C

隐匿性丙型肝炎病毒感染与慢性丙型肝炎的比较分析

Occult Hepatitis B Virus Infection: Analysis of HBV Gene Mutation

隐匿性乙型肝炎病毒感染：HBV基因变异分析

As a rule the swine infested with the lungworms carrying the "masked virus" did not develop swine influenza immediately upon infestation with the lungworm.

通常，受到携带了“隐蔽病毒”的肺丝虫侵袭的猪，并不因肺丝虫的侵袭立即发生流感。

In half of the trials, the subjects'awareness of the angry faces was prevented by backward masking with a neutral face.

试验的前半部份，受试者对于愤怒脸部的意识，被一张无情绪表达的脸所产生地相反掩蔽作用所阻碍。