艾滋病病毒存活

艾滋病病毒存活
　　艾滋病病毒存活时间？尽管艾滋病病毒出现在人类中间已有几十年的时间了，但是艾滋病患者存活时间的长短一直是一个比较难以确定的问题。最近美国科学家公布的一项研究结果显示，艾滋病病毒存活时间长短与其被感染的亚型病毒种类有很大的关系。例如，与A亚型艾滋病病毒感染者相比，D亚型艾滋病病毒感染者的存活时间较前者要短若干年。

　　艾滋病病毒存活在人体外生存能力极差，不耐高温，抵抗力较低，离开人体不易生存，常温下只可生存数小时至数天。对热敏感，在56度的条件下30分钟灭活；对许多化学物质，如75%的酒精，2.5%磺酊，0.5%的次氯酸钠等一般消毒剂敏感，1分钟灭活；对紫外线不敏感。

　　艾滋病病毒在室温下没有一定的准确存活时间，一般来说存活时间不是很长，但它对低温耐受性强。
　　对艾滋病病毒感染的医疗设备和器械加热至56`C10分钟就能使病毒灭活，对艾滋病病毒污染的物品一般用75%酒精，10%漂白粉溶液，3%双氧水等作用10分钟就能使病毒灭活。

　　美国霍普金斯大学医学院的科学家对乌干达的300多位艾滋病患者进行统计研究后发现，在被D亚型艾滋病病毒感染的患者中，有10%的人会在三年内死亡。而在同样时间段内，被A亚型艾滋病病毒感染的患者中无一人死亡。参加此项研究的科学家介绍说，在他们所研究的艾滋病患者中，有203位为D亚型艾滋病病毒感染者，53位是A亚型病毒感染者，还有70人为D亚型和A亚型病毒的混合感染者。

　　该项研究结果显示，艾滋病病毒存活时间因被感染的亚型种类不同而有很大的差异，尽管这些研究对象被感染的病毒数量基本上是一样的。A亚型病毒感染者的平均存活时间为8.8年，而D亚型病毒感染者的平均艾滋病病毒存活时间降至为6.9年，而D亚型和A亚型病毒的混合感染者的存活时间更短，平均只有5.8年。

HIV survival
HIV survival time? Although the AIDS virus among humans have been in decades, but the length of survival of AIDS patients has been a relatively difficult to determine the problem. U.S. scientists recently published a study showed that the length of survival time of HIV have been infected with subtype virus strains have a great relationship. For example, subtype A HIV-infected persons compared, D subtype of HIV-infected persons should be shorter survival time than the former years.

HIV survive outside the viability of the very poor in the human body is not high temperature, low resistance, leaving the human body is not easy to survive at room temperature can only survive a few hours to several days. Sensitive to heat, under the conditions of 56 degrees for 30 minutes inactivated; for many chemical substances, such as the 75% alcohol, 2.5% sulfur tincture, 0.5% of the general disinfectant sodium hypochlorite sensitive, and 1 min inactivated; right is not sensitive to ultraviolet light.

AIDS virus at room temperature is not necessarily the exact survival time, in general, the survival time is not very long, but its strong low-temperature tolerance.
Of HIV-infected medical equipment and appliances heating to 56 `C10 minutes can make the virus inactivation of HIV-contaminated items are using 75% alcohol, 10% bleaching powder solution, such as the role of 3% hydrogen peroxide for 10 minutes can make the virus inactivated.

Johns Hopkins University School of Medicine scientists in more than 300 AIDS patients in Uganda to conduct statistical study was found that subtype D HIV-infected patients, 10% of people will die within three years. While at the same time period, was subtype A HIV-infected patients, none died. Participate in the study, scientists said in their study of AIDS patients, there are 203 for the D subtype HIV-infected persons, 53 were subtype A virus infection, there are 70 subtypes and A sub-human D mixed virus infection.

The study results showed that the survival time of HIV infection due to different sub-types are very different, even though these subjects were infected with the viral load is basically the same. A subtype virus infection, the average survival time was 8.8 years, while the D subtype of HIV infected persons, the average survival time dropped to 6.9 years, while the D subtype A virus subtypes and mixed the survival time of infected persons is more short, an average of only 5.8 years.