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  • Nederland - De komst van de tijgermug

    Report from april 2008;

    Relevant because some reports in UK Press say "tigermosquito's are present in the Netherlands". This is true, however these mosquito's were imported, did not breed. Also the "Lucky Bamboo" plants are imported in gel these days, not in water like before. This is done to prevent mosquito's to travel to Europe. Not sure if this really prevents the mosquito's coming in.

    Abstract

    Import of tigermosquitos in the Netherlands

    Since 2005 the tigermosquito, Aedes albopictus, has been occasionally found in green houses with Lucky bamboo plants which are imported into the Netherlands from south China.

    As the tigermosquito is a vector for arboviruses such as dengue and Chikungunya, and dengue is endemic in south China, research is conducted to determine the settlement of the mosquito in the Netherlands.

    Although Aedes albopictus is occasionally found, there are no indications of arbovirus infection yet. However, vigilance is needed as long as mosquitoes are being imported.


    Tiger mosquito's were found in these countries:


    Name:  6c5be93ffb667614f5242a837777f393.jpg
Views: 2
Size:  128.5 KB


    More (in Dutch):

    http://www.rivm.nl/cib/publicaties/b.../tijgermug.jsp

    http://www.google.com/language_tools?hl=en
    “Addressing chronic disease is an issue of human rights – that must be our call to arms"
    Richard Horton, Editor-in-Chief The Lancet

    ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

  • #2
    Re: Netherlands: no arbovirus infections found (study)

    "however these mosquito's were imported, did not breed"

    Looking at the complete colonizzation of Italy by that "imported" tiger, if they indeed didn't breed in Netherlands, probably they would after more climate warmings of the area.

    Comment


    • #3
      Re: Netherlands: no arbovirus infections found (study)

      Originally posted by tropical View Post
      "however these mosquito's were imported, did not breed"

      Looking at the complete colonizzation of Italy by that "imported" tiger, if they indeed didn't breed in Netherlands, probably they would after more climate warmings of the area.
      Yes, that could be a serious possibility.
      “Addressing chronic disease is an issue of human rights – that must be our call to arms"
      Richard Horton, Editor-in-Chief The Lancet

      ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

      Comment


      • #4
        Re: Netherlands: no arbovirus infections found (study)

        Tiger mosquito back in the Netherlands

        Tuesday 15 July 2008

        The Asian tiger mosquito (Aedes albopictus) has again been spotted in the Netherlands, the farm and environment institute CLM said on Tuesday.

        The mosquito, which spreads dengue fever, has been spotted in several greenhouses where ornamental bamboo is being cultivated, news agency ANP reports.

        Last year, plant importers were warned to take steps to eradicate the eggs and larvae.

        Dengue fever leads to fever, headaches and muscle pain and sometimes a rash. The mosquito takes its name from its black and white striped legs.

        http://www.dutchnews.nl/news/archive...in_the_net.php

        More details on tiger mosquito's in the Netherlands, including results of research here: http://www.tijgermug.info/

        Website in Dutch; Google Language Tools can help you to translate.
        “Addressing chronic disease is an issue of human rights – that must be our call to arms"
        Richard Horton, Editor-in-Chief The Lancet

        ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

        Comment


        • #5
          Re: Netherlands: no arbovirus infections found (study)

          A critical note, stating Dutch Authorities are reacting slow and inadequate against the import of Tiger Mosquito's .


          machinetranslated

          Almost all Political Parties, in Parliament on February 12, 2008 adopted a motion to prohibit the import of tige mosquito's; to stop by the Lucky bamboo in quarantine. By letter dated March 28, 2008, the Minister informed the Lower House that he ignored the motion.

          Quarantine would be difficult not only feasible but also unnecessary, because the policy claims to have been successful. Since October 2007 are no longer tijgermuggen found in traps in the Lucky bamboo-greenhouses.
          This argument lacks sufficient substantiation.

          The policy can only be called successful if no tiger mosquito's , in any form whatsoever (egg, larva, pop or adult), introduced in the Netherlands and
          if all tijgermuggen which may in and outside the greenhouses have been distributed eradicated.

          The minister has not yet demonstrated that this is the case.

          The only event where the minister his "success story" on bases, is that there is no tigermosquito's since October 2007, more traps were found. But with falling only adults caught, and only ones in the Lucky bamboo-flying greenhouses.

          This catch say nothing about:

          the possible presence of adults outside the greenhouses [* /]

          the presence of eggs, larvae and pupae in the greenhouses or elsewhere.


          As for the adults in the greenhouses, the researchers RIVM, PD and WUR in their report of August 2007 explicitly states that "no tijgermug in the fall" still does not mean "no tijgermug in the greenhouse.

          The researchers themselves have seen that sometimes tigermosquito's were flying around near the trap, but there were not trapped. In the meantime, the mosquitoes opportunity to workers in the greenhouses in stabbing (this is dozens of times by the researchers recorded).

          In fact, in the only two companies, which have never been a tijgermug in the fall had been found, the employees in the greenhouses still had experienced inconvenience of tigermosquito's.

          After the flying mosquitoes what the employees have blood drained, they can lay hundreds of eggs that are barely visible. The eggs are then larvae. Also provided by the researchers found in water containers where no Lucky bamboo in had been. These larvae are never counted with the catch.

          The researchers have also noted that importers regularly use pesticides to the tijgermuggen-nuisance to limit, even though there was a fall in the greenhouse. And mosquitoes that are destroyed, are obviously not in the fall correctly. The fall thus inconclusive about the absence of tijgermuggen.

          There are also regularly found defective traps, and there are even indications that importers sometimes sabotage the trap, so there is no tiger mosquito brought into. That could, for example by gauze for the effect to work on days when there is no check was to be expected.

          All in all, from the mere fact that in the fall tijgermuggen no longer be found, not be concluded that there is no tijgermuggen (in whatever form) are imported. The minister will be rulings on the "tijgermuggenvrije" situation which, according to him since October 2007 is therefore need support with, among others:
          Data m.b.t. zichtwaarnemingen of tijgermuggen in the greenhouses
          Data m.b.t. tijgermuggen-nuisance to the workers
          Data m.b.t. defective fall
          Data m.b.t. fall where sabotage is suspected, and the measures taken there are
          Data m.b.t. the presence of tijgermuggen (in whatever form) outside the greenhouses and the control thereof

          The Ministry of Health has indicated that this information since October 2007 no longer be collected by the researchers, because this is not part of the new study in August 2007 by the Ministry to provide the PD.

          All in all, from the mere fact that since October 2007 in the fall tijgermuggen not been found, not be concluded that since that time no tijgermuggen (in whatever form) are imported.

          http://www.tijgermug.info/main.php?pg=9
          “Addressing chronic disease is an issue of human rights – that must be our call to arms"
          Richard Horton, Editor-in-Chief The Lancet

          ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

          Comment


          • #6
            Re: Netherlands: no arbovirus infections found (study)

            Apparently Tiger Mosquito's can be destroyed with the current pesticides, however larvea not. The temporary use of an other pesticide has been allowed. Swift action. No word on more control of imports of "lucky bamboo".

            Holland is a centre of trade in flowers and plants, millions of "lucky bamboo" plants (not bamboo..; http://en.wikipedia.org/wiki/Dracaena_sanderiana ) are transported every year.


            machinetranslation

            17/07/2008

            Again temporary exemption for pesticide against tiger mosquito

            At the request of Minister of Health, Welfare and Sport Klink, Minister Cramer of the Environment in consultation with Minister of Agriculture Verburg decided to exempt from the ban on the use of biocides on the basis of the active ingredient Bacillus thuringiensis israeliensis in connection with the fight against the larvae of the Asian Tiger Mosquito. The exemption is granted for the duration of 120 days.

            The adults of the Asian Tiger Mosquito can be destroyed with the current pesticides. Bacillus thuringiensis israeliensis is currently the only available active substance that is sufficiently effective against the larvae of the Asian Tiger Mosquito, but in the Netherlands had the means Vectobac AS 12 on the basis of this active substance no admission. At the request of Minister of Health Klink is now an exemption granted.

            The Ministry of Health suggests that imports and the establishment of the Asian tijgermug should be, in connection with a major danger to public health.

            The Asian tijgermug can carriers of the dengue virus that ao (Dengue virus) and can cause meningitis. These diseases are dangerous to humans and can cause death.

            With the fight against the larvae of the Asian tijgermug is the one that achieved the larvae can not develop into mature specimens and in particular workers in greenhouses can stabbing, the other is establishment of this mug in the Netherlands.

            http://www.agriholland.nl/nieuws/artikel.html?id=92180
            “Addressing chronic disease is an issue of human rights – that must be our call to arms"
            Richard Horton, Editor-in-Chief The Lancet

            ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

            Comment


            • #7
              Re: Netherlands: no arbovirus infections found (study)

              Apparently Tiger mosquito's are flying around in some area's in Holland, in this case inside a school.

              Tiger mosquito is settling in

              July 22, 2008


              He is roaming around in the Netherlands: tigermosquito.
              The first were reported last week. From tropical areas lift he secretly along with passengers, in old tyres and a plant known as lucky bamboo. One bite can cause the dengue disease (dengue). Chances are that the insect will stay here .

              Pats! In a blow is the mosquito knocked out during a meeting at a school in Pijnacker. The place to land has poorly been chosen by the insect: on the arm of Dr. Jan Hendrik Richardus, associate professor of Social Health of the Erasmus University Medical Center.

              He says: "I have lived for years in northern Thailand, where I am involved in leprosy control. At a glance I knew that this was an Asian tigermosquito, who denguevirus can convey these so-called Aedes Albopictus there is frequent.

              Almost at that meeting I wanted to jump and call against the others call: "This animal does not belong here! Do you know what this means? "This is now a half years ago. It was of course in an area with greenhouses, full of plants from exotic places. That would be the origin of that mosquito one can explain. "

              The department of social health of the Erasmus University Medical Center in Rotterdam develop under other models for the transmission and spread of tropical diseases mainly to describe the effects of control and evaluate. HIV, tuberculosis and parasitic helminth are the main diseases that this section map. Is dengue soon also be part of this illustrious list?

              Richardus: "It is one of the most prevalent infectious diseases in the world. In the second half of the twentieth century are the disseminators of the virus-infected mosquitoes-uitgewaaierd further on the continents. Doctors in the Netherlands should be on alert if they take a patient with fever that has just returned from the tropics. The popularity of travel to the infection is increasing, and thus the risk of dengue infection. The diagnosis is now easily missed. Or people think that they are an ordinary flu among members, while they are actually infected. "

              So far, the diagnosis in the Netherlands a few dozen times a year. A onderreportage, because the chance of dengue to run in an infected area in Asia is similar to those on malaria in Africa.

              Import

              There is also the dissemination through imports. Often it is unexpected goods such as old tyres which the whole world about to be towed recycling. The leftovers water in the bands may contain larvae. Alarmerender Richardus is that the Asian tijgermug in 2005 was first found by importers of lucky bambooplanten from Southeast China. For several years, these ornamental plants popular in Europe, they are not related to the real bamboo. "The trade is mainly through our country, where the plants are raised in greenhouses in the Westland. Any eggs are nestled in the importwater and the lower leaves of the cutting. Preventive measures should the risk for employees in the customs and in the greenhouses limit and are now on the cutting gel instead of water. "

              The risk to import an infected mosquito bites to run, according Richardus low, but nonetheless real. "Klimaatscenario of the RIVM show that the Asian tijgermug does not impede down here ironing. Even the coldest winter that we in the past decade experienced by January 2006, they have survived. The larvae can thus for a long time our relatively 'hot' cold passed. "

              Emerging

              Then there is a development linked to global warming, says Richardus. The encroachment of Asia and Africa Aedes Albopictus has been foot on the ground in southern Italy. And that while his brother, the Aedes aegypti, named after its official ontdekkingsplaats, only since the end of the nineteenth century from the Mediterranean European countries has disappeared. In port cities like Lisbon there are plenty of these mosquito's; water were his ideal breeding ground. Thanks to improved sanitation, sewers and water treatment he is in the twentieth century no longer reported.

              It is likely that the Asian Tigermosquito now through southern Europe to the northern regions of the continent will spread, like that has happened in the U.S.. "The patterns are there already. Then one plus one two. The question is not whether, but when it happens. It may take about a year or ten. Compare the rise of the tick that causes Lyme disease. Twenty years ago who came here still barely sign. Now the woods are full of infected animals. These insects have the current climatic conditions, and does not withdraw from land. "

              soldiers

              Richardus: "It is unpleasant but true: there is only good research into tropical diseases done if the West is hit. Or the army, because in the past, most expatriate soldiers died not by war but by local conditions. Even when the studies dengue names a high flight during the Second World War, when British soldiers fought in India, and at the time of the war that claimed the Americans in Vietnam. "

              Researchers are now trying to determine how it is that the 2nd dengue infection often leads to serious symptoms: haemorragische dengue (DHF / DSS). The theory is that the body creates antibodies that after an initial infection bind to a virus with a new serotype (denguevariant), these anti-viruscomplexen cause a severe reaction of the immune system. Complicated matter, that finding a vaccine it will not be facilitated.

              http://www.refdag.nl/artikel/1353093...urgert+in.html
              “Addressing chronic disease is an issue of human rights – that must be our call to arms"
              Richard Horton, Editor-in-Chief The Lancet

              ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

              Comment


              • #8
                Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                Originally posted by Dutchy View Post
                Report from april 2008;

                Relevant because some reports in UK Press say "tigermosquito's are present in the Netherlands". This is true, however these mosquito's were imported, did not breed. Also the "Lucky Bamboo" plants are imported in gel these days, not in water like before. This is done to prevent mosquito's to travel to Europe. Not sure if this really prevents the mosquito's coming in.
                It is sure that importing in gel doesn't prevent tiger mosquitoes traveling to Europe. Most tiger mosquitoes were found at nurseries that import Lucky bamboo in gel.

                Comment


                • #9
                  Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                  Welcome WillemFE!
                  "May the long time sun
                  Shine upon you,
                  All love surround you,
                  And the pure light within you
                  Guide your way on."

                  "Where your talents and the needs of the world cross, lies your calling."
                  Aristotle

                  “In a gentle way, you can shake the world.”
                  Mohandas Gandhi

                  Be the light that is within.

                  Comment


                  • #10
                    Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                    Welcome WillemFE


                    Survival of larvae appears to be reduced in gel. Adding larvicide would help

                    BROMELIADS and MOSQUITOS By: Rob Smythe M.Sc.
                    http://fcbs.org/articles/mosquito1.htm

                    Water Crystals
                    1. Very good in shaded areas.
                    2. Breaks down faster in hot areas.
                    3. Good for holidays.
                    4. Does not wash out in rain.
                    <dir> My observations
                    Non-toxic to wrigglers so they will survive if placed in wells with crystals.
                    Small wrigglers not inhibited. Larger wrigglers can get into trouble. Some get trapped and die but not all.
                    Broms filled with gel to near the surface wrigglers tend to die from overheating.
                    An experiment completed by me showed that not one ant would drink water where gel was present. Even low levels like 20&#37; gel in the water are avoided completely by green ants. They drank only from the control flasks which had no gel.
                    An experiment to see if mossies breed in water with gel present is now completed. I have sterilized the water using the same samples that I previously had wrigglers in. Microwaved a couple of times to destroy wrigglers and possible predators. Three months on none of the gel containing containers developed mosquito larvae. Three control (no gel) flasks all developed mosquito larvae. I have a feeling that fresh gel does not work so well. I need to check this out.


                    </dir>

                    The polymer gel are also known as water crystals. Water is added to the gel granules, the absorb up to 10 times their weight or volume with water.<dir>
                    </dir>

                    Comment


                    • #11
                      Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                      #7:
                      "...
                      It is likely that the Asian Tigermosquito now through southern Europe to the northern regions of the continent will spread, like that has happened in the U.S.. "The patterns are there already. Then one plus one two. The question is not whether, but when it happens. It may take about a year or ten. Compare the rise of the tick that causes Lyme disease. Twenty years ago who came here still barely sign. Now the woods are full of infected animals. These insects have the current climatic conditions, and does not withdraw from land. "
                      ..."

                      Comment


                      • #12
                        Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                        Originally posted by WillemFE View Post
                        It is sure that importing in gel doesn't prevent tiger mosquitoes traveling to Europe. Most tiger mosquitoes were found at nurseries that import Lucky bamboo in gel.
                        Thanks WillemFE, I could not agree more. More information on this at this website:

                        http://www.tijgermug.info/

                        in particular:

                        http://www.tijgermug.info/scripts/do...df/PD-memo.pdf
                        “Addressing chronic disease is an issue of human rights – that must be our call to arms"
                        Richard Horton, Editor-in-Chief The Lancet

                        ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

                        Comment


                        • #13
                          Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                          October 3, 2008

                          Holland is stepping up surveillance of Tiger Mosquito's .

                          Not only in greenhouses with Lucky Bamboo, also at some places near highways, were trucks park coming from southern Europe.

                          Also imported used tyres could be a way for the mosquito's to travel here.

                          Some links leading to recent information in Dutch, including a letter (pdf) of Director of RIVM (Nat Inst. Inf. Diseases) to Dep of Health, summarising a meeting of experts and urging for more surveillance and immediate action if mosquito's or eggs are found:

                          http://www.bndestem.nl/algemeen/binn...-niet-over.ece

                          http://www.rtl.nl/(/actueel/rtlnieuw...ermug_rivm.xml

                          http://media.rtl.nl/web/components/a.../tijgermug.pdf
                          “Addressing chronic disease is an issue of human rights – that must be our call to arms"
                          Richard Horton, Editor-in-Chief The Lancet

                          ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

                          Comment


                          • #14
                            Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                            Abstract:

                            The increasing importance of vector-borne diseases in the Netherlands.

                            The last few years Europe faced outbreaks of several ‘new’ vector-borne diseases, such as bluetongue and Chikungunya, transmitted by endemic or newly introduced arthropods.

                            The changes in the environment contribute to the survival and further spread of certain arthropods. This increases the risk of the spreading of vector-borne diseases in Europe, such as Lyme disease and tick-borne encephalitis (TBE).

                            Also the chances for survival and spread of exotic vectors, such as the Asian tiger mosquito and the tick Dermacentor reticulates, increases. Already in 2004 the Dutch Health Council mentioned that vector-borne diseases will become more important in the near future, and knowledge in this field should improve.

                            On initiative of the Food and Consumer Product Safety Authority and the Centre for Infectious Disease Control Netherlands a working group of scientists and policymakers of various disciplines within the field of vectors and vector-borne diseases was founded.

                            Sharing knowledge in this field should eventually lead to a faster response to new threats. In this article we describe the most important arthropod vectors and their transmitted infectious diseases regarding the Netherlands.

                            More (in Dutch) :

                            Infectieziekten Bulletin jaargang 19 nummer 10 2008

                            http://www.rivm.nl/cib/publicaties/b...re-ziekten.jsp
                            “Addressing chronic disease is an issue of human rights – that must be our call to arms"
                            Richard Horton, Editor-in-Chief The Lancet

                            ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

                            Comment


                            • #15
                              Re: Netherlands: Tiger Mosquito is back; no Arbovirus infections found

                              De tijgermug is dit jaar voor het eerst in "een niet afgesloten ruimte" aangetroffen. Een ander woord voor "buiten" denk ik zo. Te lezen in de brief van minister Klink aan de 2e Kamer.

                              Het commentaar van Bart Knols liegt er niet om. Er is in Nederland denk ik niemand te vinden, die meer weet van muggen dan Bart Knols.

                              Aanvulling: Tijgermuggen kunnen diverse ziektes overbrengen, o.a. dengue (knokkelkoorts), chikungunya en het West Nijlvirus; meer over uitbraken van het West Nile virus o.a. in Europa hier: http://www.flutrackers.com/forum/forumdisplay.php?f=549

                              Overigens wordt het West Nijl virus vooral overgebracht door de gewone steekmuggen.


                              Machinetranslation in English

                              Tropische muggen na jaar aangepakt

                              30-07-2010 14:41 | gewijzigd 30-07-2010 17:47 | Wetenschapsredactie

                              RIJSWIJK – Het Centrum Monitoring Vectoren (CMV) is donderdagavond op drie plaatsen in Noord-Brabant begonnen met de bestrijding van drie exotische muggensoorten.

                              Dat maakte het ministerie van Volksgezondheid gisteren bekend. Tijdens reguliere controles zijn muggen en larven van de Aziatische tijgermug, de Amerikaanse bandenmug en de Gele koortsmug aangetroffen bij importeurs van gebruikte banden.

                              Het CMV controleert sinds 2008 langs diverse snelwegen in Nederland en sinds 2009 bij bedrijven die handelen in gebruikte autobanden. Bij bedrijven die de plant lucky bamboo importeren bestaan al langer controles (sinds 2006) en wordt de tijgermug actief bestreden in de kassen.

                              De bestrijding heeft plaats op advies van het Rijksinstituut voor Volksgezondheid en Milieu. Nog geen van de aangetroffen muggen is drager van ziekteverwekkende virussen of parasieten.


                              Medisch entomoloog Bart Knols, die een boek schreef over het gevaar van tropische muggen in Nederland, reageert cynisch op de bekendmaking van VWS. „De Amerikaanse Bandenmug werd al in augustus 2009 in Brabant aangetroffen. Het heeft een jaar geduurd voordat de drie betrokken ministeries –VROM, VWS en LNV– daadkracht tonen. Dat kun je geen adequaat optreden noemen.”

                              Volgens Knols is ook elders in Europa geprobeerd de muggen te bestrijden nadat ze vaste voet aan de grond hadden gekregen. „Op veel plaatsen was de vestiging van de muggen definitief.”

                              Knols citeert uit een brief van minister Klink waarin deze er op wijst dat de muggen „geen groot gevaar voor de volksgezondheid opleveren.” Knols: „Klink bagatelliseert de situatie. Exotische muggen zijn potenti&#235;le verspreiders van infectieziekten, zoals het Westnijlvirus en Knokkelkoorts (Dengue). „Het Westnijlvirus veroorzaakt in de VS jaarlijks duizenden ziektegevallen en tientallen doden.”

                              http://www.refdag.nl/nieuws/binnenla...epakt_1_493929


                              Persbericht ministerie van VWS : http://www.rijksoverheid.nl/minister...van-start.html


                              Brief aan de 2e Kamer - 30-07-2010 : http://www.rijksoverheid.nl/minister...he-muggen.html

                              .
                              “Addressing chronic disease is an issue of human rights – that must be our call to arms"
                              Richard Horton, Editor-in-Chief The Lancet

                              ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

                              Comment

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