Announcement

Collapse
No announcement yet.

Vietnam: "new" H5N1 strain detected

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Vietnam: "new" H5N1 strain detected

    Deadly H5N1 strain detected

    (27-08-2008)

    HA NOI — A strain of the H5N1 virus that poses a high risk of infecting humans and caused an avian flu epidemic in China, has appeared in smuggled poultry in Viet Nam according to Bui Quang Anh, the head of the Ministry of Agricultural and Rural Development’s Animal Health Department yesterday.

    The infection mechanism of this highly infectious strain of the H5N1 virus, named seven, had not been found so far, Anh said.


    "We are studying more about this strain in our poultry and will soon know the results," said Nguyen Van Cam, the director of the Central Animal Diagnosis Centre.

    The avian flu strain that has typically appeared in the Cuu Long (Mekong) Delta has been strain one, while the Song Hong (Red River) Delta has seen strain two, three and four with unknown infection mechanisms.

    To prevent the strain from being spread, 242 million doses of H5N1 vaccines and 15 million of doses of H5N2 vaccines have been distributed to the localities, according to the department.

    At this volume, just 76.5 per cent of poultry will be vaccinated.

    Localities have typically neglected taking samples of poultry after being vaccinated. Only three out of 27 provinces that have undergone bird flu epidemics collected samples to test.

    Some Cuu Long (Mekong) Delta provinces with a high volume of poultry infected with the H5N1 virus include Vinh Long at 9.25 per cent, Tra Vinh with 8.97 per cent, Soc Trang with 5.32 per cent and Long An with 5 per cent.

    Anh said that more vaccines were being prepared. —


  • #2
    Re: Vietnam: new H5N1 strain detected

    > "We are studying more about this strain in our poultry and will
    > soon know the results," said Nguyen Van Cam

    just upload it to genbank, and others will tell you

    ahh, you want to present it to the press and scientific
    community exclusively, before others do ?

    No problem. But please don't let us wait 1-2 years, as typically
    seen in this branch of science.

    Timing could be critical.
    I'm interested in expert panflu damage estimates
    my current links: http://bit.ly/hFI7H ILI-charts: http://bit.ly/CcRgT

    Comment


    • #3
      Re: Vietnam: new H5N1 strain detected

      It is likely that the H5N1 described above is H5N1 clade 7, which caused the fatal human infection in Bejing in 2003 (A/Beijing/01/2003)

      Comment


      • #4
        Re: Vietnam: "new" H5N1 strain detected

        thanks for the link.

        A/Turkey/65-596/06 is a surprising good match.

        I wonder, how A/Guangxi/50/01 or A/Henan/16/04 would perform
        I'm interested in expert panflu damage estimates
        my current links: http://bit.ly/hFI7H ILI-charts: http://bit.ly/CcRgT

        Comment


        • #5
          Re: Vietnam: "new" H5N1 strain detected

          Originally posted by gsgs View Post
          thanks for the link.

          A/Turkey/65-596/06 is a surprising good match.

          I wonder, how A/Guangxi/50/01 or A/Henan/16/04 would perform
          A good match with what?

          Comment


          • #6
            Re: Vietnam: "new" H5N1 strain detected

            with all the 6 tested reference ferret antisera
            I'm interested in expert panflu damage estimates
            my current links: http://bit.ly/hFI7H ILI-charts: http://bit.ly/CcRgT

            Comment


            • #7
              Re: Vietnam: "new" H5N1 strain detected

              Vir?t H5N1 7 appearance branch in Viet Nam.
              26-08-2008 21:54:21 GMT+7 According to TTXVN.
              At conference nationally protect against brucellosis translating, fowl and seafood, day 26/ 8, Having a nutty flavour directorate fo veterinary medicine director is Optical You reports vir?t H5N1 Branched that 7, branched that there is vection loftiness risk for people, show yourselfed in Viet Nam.
              According to research about heredity of Vir?t H5N1 Vernix caseosa translate In branch Viet Nam magnetic that in the year 2007 up to now, Nine chiefly Rickety champaign sectioning is Vir?t belong to branch 1, Hong River champaign sectioning is Vir?t 2, 3, 4. This branchs vir?t are going on to transform. .
              Influenzal supervisory program on chicken is typed in without a licence at frontier town shows #PP, vir?t H5N1 Branched that 7 provoked translating In china and is capable of vection for people very-high. .
              Result supervises vir?t circulation H5N1 At 20 provinces, upper borough nationwide to show, fowl herd proportional has vir?t H5N1 Make up 1, 68%. Provinces belong to highly circulative Nine proportional Rickety champaign sectioning vir?t In the duck herd. Đrisk this iều shown flare transmitting translated from the duck run copper In this sectioning still be is giant size. Meanwhile, again proportional northern sectioning vir?t is highly circulative In chicken herd. .
              Also according to result supervised, not already fowl flu epidemic indicative mood infected via the bird is wild. .
              According to reports directorate fo veterinary medicine, take day for 26/ 8/ 2008, day fowl influenzal juicy Bamboo Marina province all the country at present only still not already via 21./ http://www.phapluattp.vn/news/khoa-h...news_id=225586
              CSI:WORLD http://swineflumagazine.blogspot.com/

              treyfish2004@yahoo.com

              Comment


              • #8
                Re: Vietnam: "new" H5N1 strain detected

                Originally posted by gsgs View Post
                thanks for the link.

                A/Turkey/65-596/06 is a surprising good match.

                I wonder, how A/Guangxi/50/01 or A/Henan/16/04 would perform
                That's prep specific stickiness (its not reality based).

                Comment


                • #9
                  Re: Vietnam: "new" H5N1 strain detected

                  It is hard to tell from the translation, but post 6 seems to indicate that there is a high degree of transmission potential in humans of this Clade 7 virus. Does anyone else concur? how would they be able to determine this without human infections?

                  Comment


                  • #10
                    Re: Vietnam: "new" H5N1 strain detected

                    I agree with you Vibrant62....from what I can understand....

                    branched that there is vection loftiness risk for people,

                    Comment


                    • #11
                      Re: Vietnam: "new" H5N1 strain detected

                      Originally posted by Commonground View Post
                      I agree with you Vibrant62....from what I can understand....
                      Because of HA, NA, PB2, NS1... If someone will show these genetic motifs (affinity with human upper respiratory tract cells, tissue tropism and prompt growth at lower temperature (PB2), NS1 (high pathogenic in humans), than we can understand better if the Vietnamese representative H5N1 of the Clade 7 (alleged) is more suitable for b-to-h transmission (or h2h).

                      Comment


                      • #12
                        Re: Vietnam: "new" H5N1 strain detected

                        Originally posted by Vibrant62 View Post
                        It is hard to tell from the translation, but post 6 seems to indicate that there is a high degree of transmission potential in humans of this Clade 7 virus. Does anyone else concur? how would they be able to determine this without human infections?
                        Post six is discussing cross reactivity with ferret antisera. It has nothing to do with human cases.

                        Comment


                        • #13
                          Re: Vietnam: "new" H5N1 strain detected

                          Originally posted by ironorehopper View Post
                          Because of HA, NA, PB2, NS1... If someone will show these genetic motifs (affinity with human upper respiratory tract cells, tissue tropism and prompt growth at lower temperature (PB2), NS1 (high pathogenic in humans), than we can understand better if the Vietnamese representative H5N1 of the Clade 7 (alleged) is more suitable for b-to-h transmission (or h2h).
                          The only data is the isolate from Bejing/1/2003 which is a fatal human infection in 2003.
                          The recent poultry infections in Vietnam are likely to be quite different than the 2003 isolate.

                          Comment


                          • #14
                            Re: Vietnam: "new" H5N1 strain detected

                            H5N1 turns up at Benin poultry market

                            Lisa Schnirring Staff Writer

                            Aug 27, 2008 (CIDRAP News) ? Agriculture officials in Benin recently reported that two chickens at a live poultry market tested positive for the H5N1 avian influenza virus, the country's first outbreak since the virus was detected there at the end of 2007.
                            Authorities found the virus during routine surveillance at a market in Lokossa, the capital of Mono department, located in the southern part of the country near the coast, according to an Aug 25 report from the World Organization for Animal Health (OIE).
                            Testing performed at Benin's national laboratory in Parakou revealed H5 highly pathogenic avian influenza, according to the report. The surveillance activity at the Lokossa market was also a training exercise for the lab's managers and officials, the OIE report said. In December 2007, when the country confirmed its first H5N1 outbreak, the samples were tested at an Italian lab.
                            Animal health officials have not determined the source of the outbreak, according to the report. Authorities disinfected market stalls and have restricted the movement of poultry within the country.
                            Outbreaks in 2007 affected two farms, also located near Benin's southern coastal area, according to previous reports. Several countries surrounding Benin have reported poultry outbreaks over the past few years, including Nigeria, Togo, Niger, and Burkina Faso.
                            In other developments, agriculture officials in Vietnam said yesterday that an unusual strain of H5N1 virus is starting to appear in smuggled poultry, the state-run Vietnam News Agency (VNA) reported in a sketchy story today. Bui Quang Anh, head of the agriculture ministry's animal health department, told VNA that the strain poses a high risk of infecting humans and had previously caused an outbreak in China.
                            Anh told VNA that the H5N1 strain was named "seven." The story did not mention a clade number. Typically, the story said, "strain one" of the H5N1 virus has infected birds in the Mekong delta, while strains two, three, and four have been found to infect birds in the country's Red River Basin.
                            Nguyen Van Cam, director of Vietnam's Central Animal Diagnosis Centre, told VNA the lab was doing more tests to better characterize the strain and that he expected results soon.
                            See also:
                            Aug 25 OIE report
                            Dec 17, 2007, CIDRAP News story "Benin confirms its first H5N1 outbreaks"

                            Comment


                            • #15
                              Re: Vietnam: "new" H5N1 strain detected

                              Commentary

                              Comment

                              Working...
                              X