First flows and threatens not to go far Or will change one " Ma Jia " Stage a comeback
Though people forget first type the intersection of H1N1 and threat of influenza go far slowly. In World Health Organization (WHO) at least Official site at,last position still content on it is related to first type H1N1 influenza, second only to to go the football fans of South Africa World Cup made " The hygiene is proposed " . The researcher that and come from the microorganism of Li Jiacheng medical college of University of Hong Kong finds, first type H1N1 influenza virus produced a kind of new virus after the pig recombinated the gene on one's body. The publication of this research results is on Science published on June 18. "First flow and has not left. " Though before this, people are more willing to believe, great influenza that will break out every 30 years. What's more, first type H1N1 influenza, to the actual threat that people cause, it is far than the imagination and slight. Says while giving an interview that but WHO virus monitors network member, Ian and Lipkin of epidemiologist of Columbia University of American: "Virus different to predict, can't break out by loud influenza last year, begin to relax this year. The evolution of the virus is too fast, we must maintain vigilance constantly. " One brand-new virus for the moment, arouse the intersection of people and " first shed memory " again New for virus,it is lose at the laboratories of professor to wait to in charge of at microorganism department. This virology family is a world-class authoritative influenza expert. In spring of 2003, he isolated SARS virus at first. Two years later when bird flu breaks out, he and group draw out " atlas that bird flu propagates " again . And this time, " bird flu hunter " Take aim sight to first type H1N1 influenza. Influenza virus is made up of 8 genetic segments together. If two pieces of virus meet in the same cell, and can combine the freedom association compatibly each other among their gene, may present 256 seeds and take the place of the virus finally then. From will it be October 2009 to will it be January 2010, Hong Kong old research group cost altogether at sample of pig finding 8 " until first shed have blood reason relation " ,But influenza virus that the genotype had nothing in common with each other. The virus is actually colourless, but in the thesis, the researcher likes representing the genetic Section within the virus by various bright-colored color, thus let people discern the slight difference among the virus clearly. "First genotype belong to scarlet all, this until great influenza basically identical genotype last year. " The post-doctor in the laboratory Zhu HuaChen says, she is one of the authors of the thesis. A vivid green one group is immediately after it, this is quite popular bird flu virus at the Eurasia, passed to the pig by the birds. The third group of orange virus, the scientific name, in order that " treble in North America to recombinate the virus " ,It is said, it has already prevailed in North America area for more than 10 years, and spread in recent years to some other continents progressively. 5 kinds of following newly discovered virus genotypes, it is no longer single color, but yellow, blue and green is interweaved among them in a jumble, this is " new variety produced after the frequent genetic exchange between the virus " . Blue, on behalf of already classical type pig's influenza virus in seventy or eighty years has prevailed in the whole world pig group at least. "But the last kind is the most special. " Zhu HuaChen emphasizes. In this kind of virus, NA gene section is scarlet, that is to say, this section of genes are the same as first type H1N1 influenza virus. According to the virus classification, host, location, serial number, separate year and inferior type, etc, this was isolated on October 22 of 2009 " The new face " ,Named as " A/ Swine/ HK/ 201/ 2010(H1N1) " . However, accompany its experiment personnel for a long time, willing to be called " Hong Kong 201 " more cordially . The influenza for several decades is investigated the daily record of the experiment shows, " Hong Kong 201 " Have never been found before this. " red passage " Then the position proves distinctly, after first type H1N1 influenza virus travels to pigs, recombinate with the original virus gene in pig's body, produce a kind of brand-new virus which carries the big human influenza gene. A clumsy research approach though such new virus and first flows in the same genetic Section of only one virus, but they have a similar distinction. " Hong Kong 201 " It is a lively virus too, all experiments correlated to this, must be in the tertiary laboratory (P3 laboratory) of biological safe protection where security is extremely high China goes on. It is a huge project to want to enter this laboratory, Zhu HuaChen should " go from hair arms to the toe " every day . Put on the similar protective clothing when the biochemical weapon, wear face guard and respirator of gas defense, and then set foot on the rain shoes. In addition, all interface of this clothes must be glued with the sealed rubberized fabric. In the intersection of P3 and laboratory, she need, reach, raise cage of pig to carry virus through 8 door. Come into a door each time, the atmospheric pressure is reducing, this guarantees air can only run to the room outside the room, unable to let in the room the air with virus flows out backward. So, in the face of the terrible high dangerous virus, experiment personnel are never anxious, " the probability infected in the laboratory is much smaller than the probability that is infected in the street " . A professor even jokes, if present a kind of virus toxicity and the first spread ability of flowing with bird flu in the world, his first thing wanted to do, " run into P3 and lock oneself inside " . In the room of the most end, have infected " Hong Kong 201 " in this safe laboratory Place of the life of pig of the virus. Over the past 12 years, researchers insist that go to a slaughter house located in Sheung Shui of Hong Kong once every two weeks. Here's a pig in different provinces of South China, researchers collect samples, and thereby monitor the situation of influenza virus infection on pigs. This is a monitoring plan launched together by University of Hong Kong and Hong Kong Food and Environmental Department. "We are carrying on very clumsy scientific research. " In charge of losing and saying. This kind seems to be " Clumsy" Behavior,it is getting more substantial constantly database it is viral in theirs. For a long time, the pig is considered to be " mix the container " of pig, birds' bird, human influenza virus ,The virus between poultry and the mankind is very difficult to infect each other, but the pig is very sensitive to these two kinds of virus which hosts carried, "the big agitator of the only picture, mix the virus of pig, bird, people among them, produce a lot of genetic mutations finally " . Before this, South China of China is always considered to produce new influenza number and large influenza to make a variation in the centre of one. Last year when first type the intersection of H1N1 and influenza virus break out, have foreign scholar assume once, this " to raise pig's worker to U.S.A. California China, and propagate this influenza in North America " . But the research group that is in charge of losing has never found first type H1N1 influenza virus on pig before October of 2009. " our data have totally overthrown this statement " ,Does he emphasizes repeatedly when being interviewed by China Youth News reporter, " we? Hu's badger of rosy clouds of posthumous Fu Fu says <
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