一场病毒引起的疾病使她走路十分困难。
大部分的普通感冒和流感都是病毒引起的。
Most forms of the common cold and flu are caused by viruses.
目前尚不清楚究竟是哪种病毒引起的死亡率上升。
Which virus is responsible for the increased mortality is not yet clear.
临床信息，尤其是来自墨西哥的信息，说明这种病毒也可引起严重疾病和死亡。
Clinical information, especially from Mexico, indicated this virus also could cause severe disease and death.
麻疹是病毒引起的传染性极强的严重疾病。
Measles is a highly contagious, serious disease caused by a virus.
三种不同的流感病毒流感A型、流感B型和流感C型都能引起流感。
Influenza a, B and c, three separate strains of the virus, cause the flu.
黄热病由蚊子传播的病毒引起。
Yellow fever is caused by a virus transmitted by mosquitoes.
了解病毒引起和细菌引起咳嗽的差异。
Learn the difference between a virus-caused cough and a bacteria-caused cough.
它是由于感染了人类免疫缺陷病毒后引起的一种致死性传染病。
It is due to infection of human immunodeficiency virus after a fatal infectious disease.
滴虫感染可引起人体免疫缺陷病毒的传播。
The infection facilitates transmission of the human immunodeficiency virus.
你知道感冒和流感是由病毒引起的吗？
能引起疱疹的病毒类型本身是乎没有保护作用。
The type that causes herpes itself does not seem to have a protective effect.
他们的研究集中在唇疱症上，它也是有一种常见的病毒引起的。
They focused on cold sires, which are also caused by a common virus.
卫生官员认为，数以百万计的美国人已经引起了病毒。
Health officials believe millions of Americans have caught the virus.
医生说：正是HIV病毒引起艾滋病的。
病毒是引起疾病的极小微生物。
Viruses are extremely tiny microorganisms that cause disease.
禽流感是由A型流感病毒引起的传染性疾病。
Bird flu is a contagious disease caused by TYPE a flu virus.
至今尚不能下结论说有些人类的肿瘤是由病毒所引起的。
No human tumor has yet been conclusively shown to be viral in origin.
因为这是这一类病毒中的首例，很自然地他引起了反病毒厂商的注意。
As the first of its kind, it naturally attracted the attention of antivirus companies.
这种病是由病毒引起的。
它通常是由病毒引起的。
他介绍说，艾滋病是由人类免疫缺陷病毒感染引起的。
He said that AIDS is from human immunodeficiency virus infection.
禽流感是由A型流感病毒引起鸡、火鸡、鸭、鹅、鹌鹑等家禽的传染病。
Avian influenza is an infectious disease in chicken, Turkey, duck, goose, partridge and so on.
苹果病毒病的危害正日益引起人们的重视。
Recently, people have paid more attention to apple virus day by day.
研究中的女性都没有引起艾滋病的病毒。
None of the women in the study had HIV the virus that causes AIDS.
因此，我怀疑这是一种病毒，这种疾病是由细菌引起的。
So I doubt that this is a virus; this disease is caused by bacteria.
病毒感染引起多种疾病，严重危害人类的健康和生命。
Virus infection causes many kinds of diseases doing great harm to human health and life.
它常常是由细菌或病毒感染引起的。
It is most often caused by either bacterial or viral infection.
它常常是由细菌或病毒感染引起的。
It is most often caused by either bacterial or viral infection.
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