显性感染

肾综合征出血热（HFRS）汉滩（Hantaan）型和汉城（Seoul）型病毒在感染人体后，显性感染人群IgG抗体、中和抗体随着时间的推移，逐年下降。

Infected by Hantaan type and Seoul type viruses of HFRS . in apparent infected population , IgG and neutralizing antibody decreased with time .

1岁以上人群的GMT为694.49，尚未达到麻疹显性感染保护滴度；

GMT of people of more than one year was 694.49 and had not reached the titer of preventing measles dominant infection .

血清学监测结果表明，强化免疫后1个月，麻疹IgG抗体无论阳转率、几何平均滴度，还是预防显性感染抗体比例，都达高水平；

The results of serology monitoring showed either the positive seroconversion rate or the GMT level of measles IgG antibody , or the ratio of preventing clinical infection raised to the highest level after one month of mass immunization .

1995年5月，对某实验动物中心发生的肾综合征出血热（HFRS），进行调查。结果，显性感染1例；

A survey about the Hemorrhagic Fever With Renal Syndrome ( HFRS ) infection in an experimental animal-raise centre was conducted in May , 1995.The results showed that there was a HFRS case and 34 inapparent cases .

将PMN-Elastase检测结果分为正常组（未受感染）、隐性感染组、显性感染组。

Classified three groups by the result of seminal plasma PMN-Elastase : normal group ( uninfection ), recessive infection group and dominant infection group .

基因分析表明，隐性同显性感染一样存在着不同的基因型，长型占优势。

Gene analyses showed that most of the viruses were long type .

为预防显性感染，在流行季节应采取相应预防控制措施。

To prevent symptomatic rotavirus infection in neonates , the preventive measures should be taken in the epidemic season .

推荐黄疸出血群钩体隐性感染抗体滴度以1∶≥200为宜，隐性与显性感染比例约为3万分之一；本地区钩体将以散发为主，流行的概率较小。

We recommend it be moderate with the standard about the quantified serum antibody titer be 1 ∶≥ 200 , which the proportion of covert infection to overt infection is 30 000 ∶ 1.The leptospirosis is mainly sporadic little probability of prevalence .

甲肝显性病例与不显性感染之比为1∶1.0～2.0，流行初期显性比例较高。而乙肝的感染主要是亚临床类型。

The ratio of clinical cases to inapparent infection of HA was between 1:1.0 and 1 : 2.0 , and higher in early stage of the epidemic , while HB infection mainly occurred in subclinical type .