Note: Initial infection with HIV may produce no symptoms.
注意：HIV感染早期一般不会有症状。
The occurrence of disease was closely correlated to the initial infection sources and species of peony tree.
病害发生与牡丹不同品种、初侵染源等因子密切相关。
The result showed there is the resistance to spread as well as to initial infection of Fusarium head blight in barley.
结果表明，大麦赤霉病抗性除了抗初侵染类型外还存在抗扩展类型。
The result showed there was the resistance to spread as well as to initial infection of Fusarium head blight in barley.
结果表明，大麦赤霉病抗性除了抗初侵染外还存在抗扩展类型。
Besides anthers at anthesis, pistils and young caryopses are rich in choline and are the main sites of the initial infection.
富含胆碱的残留花药、雌蕊及早期颖果是禾谷镰孢菌的主要初侵染源；
Anyone who once had chickenpox is at risk of shingles since the virus may become reactivated years after the initial infection.
由于这种病毒可能会在首次感染后数年内重新复活，故任何曾出过水痘的人都有发生带状疱疹的风险。
The first few weeks after initial infection, individuals may experience no symptoms or a flu-like illness including fever, headache, rash or sore throat.
在感染后最初几周可能毫无症状，或出现发热、头痛、皮疹或咽痛等流感样疾病症状。
The activity of ascorbic acid peroxidase (APX) showed no remarkable change in the initial infection stage, but increased during later stage of infection.
抗坏血酸过氧化物酶(APX)的活性在感染的初期变化不明显，而在感染的后期活性有所增加。
In the late stage of syphilis, sometimes 20-30 years after the initial infection, damages are often seen in the blood vessels including the AORTA and the AORTIC VALVE.
在梅毒晚期（有时发生在最初感染后20-30年），常出现累及血管（包括主动脉和主动脉瓣）的病损。
The study shows that the initial infection source of the disease is the disease spot on the branches. In the growing season branches, leaves and fruits can infect one another.
研究发现，病害的初侵染源来自枝干病斑，生长季节枝、叶、果互相交叉传染。
No early symptoms of AIDS-specific, most of the infected persons in the initial infection does not have any symptoms, only to do blood tests to determine whether the infection.
艾滋病初期的症状没有特异性，大多数的感染者在感染初期是没有任何症状的，只有做血液检测才能确定是否感染。
Initial investigations into the source of his infection suggest a number of sudden chicken deaths occurred around the case's house a week before onset.
感染源初步调查显示，病人出现症状的一周前，其住所的周边地带曾突然出现过大量鸡只死亡。
However, as her clinical course was compatible with H5N1 infection, epidemiologists at the outbreak site include this woman as the initial case in the cluster.
但是，由于其临床过程与H5N1感染相一致，在疫情地点的流行病学家们将该名妇女列为该病例群集的最初病例。
These cases, which include the parents and their three young daughters, are undergoing further investigation following initial tests indicating infection with the H5 subtype of avian influenza.
这些病例包括父母及其三个年轻女儿，在初步试验表明感染禽流感H5亚型之后正在进行进一步调查。
Samples from an initial 15 patients under investigation for possible infection were tested today at a US Naval Medical Research Unit located in Cairo, Egypt.
第一批15名接受疑似感染调查的患者的样本今日在位于埃及开罗的美国海军医学研究所进行了化验。
If these initial findings hold, honey could find a new role as part of a one-two punch of drugs and the sweet stuff to combat infection.
如果这些初步的发现确认有效，蜂蜜就能够扮演治疗细菌感染的重要角色，让含有蜂蜜的药物对细菌展开连续进攻，而且这些药物吃起来还非常甜。
Initial tests on this case produced negative results for infection with the H5 virus subtype.
对该病例初步检测H 5病毒亚型感染结果为阴性。
Initial test results received on 27 September were negative for the H5 virus subtype and positive for the H1 subtype, indicating an infection with normal seasonal influenza.
9月27日获得的初步检测结果为H5病毒亚型呈阴性，H1亚型呈阳性，表明感染正常的季节性流感。
He discovered that the activation of a gene called Toll is crucial for switching on the initial immune response that allowed his flies to fight off infection.
他发现Toll基因的激活对启动能帮助果蝇抵御感染的固有免疫反应尤为关键。
This is why the presence of an H5 or H7 virus in poultry is always cause for concern, even when the initial signs of infection are mild.
这就是为什么如果家禽中出现H 5或H7型病毒，始终令人担忧，即使最初的感染迹象很轻微。
These bacteria migrate from the nose and throat to the middle ear after an initial influenza virus infection paves the way.
一种原发流感病毒感染之后，可以使这些细菌从鼻和咽喉移行至中耳。
The most important aspect of the initial approach to a surgical infection is the recognition that operative intervention is required.
最初处理外科感染最重要的是认识到手术干预是需要的。
Initial information about the confirmed cases suggests that the children acquired their infection following close contact with chickens.
关于确诊病例的初步信息表明，这些孩子是和鸡近距离接触后感染禽流感的。
They said such a strategy may require a large number of initial investment, but to reduce the rate of infection will lead to prevention, care and treatment costs much lower.
他们说，这样的一个策略可能需要初期大量投入，但是降低传染率将导致预防、护理和治疗的开支大大降低。
Some patients with early symptoms of HIV infection and even acute aseptic meningitis and acute aseptic meningitis the initial symptoms of headache, neurological symptoms and meningeal irritation.
有的患者在艾滋病感染初期症状甚至还出现急性无菌性脑膜炎，急性无菌性脑膜的初期症状是头痛、神经性症状和脑膜刺激症。
It is from these samples scientists discovered the existence of some kind of HIV virus and analysis of the initial HIV infection to human beings is the most likely age in 1908.
科学家正是从这些样本中发现了某种HIV病毒的存在，并分析出HIV最初感染到人类的可能性最大的年代是1908年。
It is from these samples scientists discovered the existence of some kind of HIV virus and analysis of the initial HIV infection to human beings is the most likely age in 1908.
科学家正是从这些样本中发现了某种HIV病毒的存在，并分析出HIV最初感染到人类的可能性最大的年代是1908年。
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