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> <channel><title>Comentarii la: Gripa porcină &#8211; între mit, adevăr şi profit</title> <atom:link href="http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/feed" rel="self" type="application/rss+xml" /><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=gripa-porcina-intre-mit-adevar-si-profit</link> <description>Idei si nu prea...</description> <lastBuildDate>Fri, 30 Jul 2010 21:53:30 +0000</lastBuildDate> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.0</generator> <item><title>De către: Monel</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-237</link> <dc:creator>Monel</dc:creator> <pubDate>Mon, 16 Nov 2009 17:12:42 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-237</guid> <description>Teoretic e posibil si se numeste interferenta virala.
Nu mai am chef sa traduc:Virus interference - A phenomenon which may be defined as protection of host cells against one virus, conferred as a result of prior infection with a different virus.Inhibition of the replication of a virus by a previous infection with another virus. The two viruses may be unrelated, related, or identical. In some cases, virus interference may take place even if the first virus was inactivated. The term mutual exclusion has been applied to this phenomenon in bacterial viruses.Several mechanisms of interference can be distinguished: (1) Inactivation of cell receptors by one virus may prevent subsequent adsorption and penetration by another virus. (2) The first virus may inhibit or modify cellular enzymes or proteins required for replication of the superinfecting virus. (3) The first virus may generate destructive enzymes or induce the cell to synthesize protective substances which prevent superinfection. (4) The first virus may generate defective interfering particles or mutants which may inhibit the replication of the infecting virus by competing with it for a protein (or enzyme) available in limited quantities; this type of viral interference has been called autointerference, and depends on a greater replicative efficiency of the defective interfering particles or mutants, compared to the infecting virus.How important such interference is in viral epidemics is unclear, however, there are also cases in which there is no interference, and people catch two viruses at the same time.Pentru alte detalii: http://www.newscientist.com/article/mg20427345.100-common-cold-may-hold-off-swine-flu.html</description> <content:encoded><![CDATA[<p>Teoretic e posibil si se numeste interferenta virala.<br
/> Nu mai am chef sa traduc:</p><p>Virus interference &#8211; A phenomenon which may be defined as protection of host cells against one virus, conferred as a result of prior infection with a different virus.</p><p>Inhibition of the replication of a virus by a previous infection with another virus. The two viruses may be unrelated, related, or identical. In some cases, virus interference may take place even if the first virus was inactivated. The term mutual exclusion has been applied to this phenomenon in bacterial viruses.</p><p>Several mechanisms of interference can be distinguished: (1) Inactivation of cell receptors by one virus may prevent subsequent adsorption and penetration by another virus. (2) The first virus may inhibit or modify cellular enzymes or proteins required for replication of the superinfecting virus. (3) The first virus may generate destructive enzymes or induce the cell to synthesize protective substances which prevent superinfection. (4) The first virus may generate defective interfering particles or mutants which may inhibit the replication of the infecting virus by competing with it for a protein (or enzyme) available in limited quantities; this type of viral interference has been called autointerference, and depends on a greater replicative efficiency of the defective interfering particles or mutants, compared to the infecting virus.</p><p>How important such interference is in viral epidemics is unclear, however, there are also cases in which there is no interference, and people catch two viruses at the same time.</p><p>Pentru alte detalii: <a
href="http://www.newscientist.com/article/mg20427345.100-common-cold-may-hold-off-swine-flu.html">http://www.newscientist.com/article/mg20427345.100-common-cold-may-hold-off-swine-flu.html</a></p> ]]></content:encoded> </item> <item><title>De către: aNDRIIpOPA</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-236</link> <dc:creator>aNDRIIpOPA</dc:creator> <pubDate>Mon, 16 Nov 2009 14:25:02 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-236</guid> <description>Ştii ce am aflat azi? Că virusul gripei porcine nu afectează persoanele cu guturai (!?!). Cică ar conţine agenţi patogeni care determină ca virusul gripei noi să nu se poate desfăşura şi în cele din urmă să moară. Ei, asta chiar le întrece pe toate! Principiul &quot;cui pe cui se scoate&quot; revine în actualitate.</description> <content:encoded><![CDATA[<p>Ştii ce am aflat azi? Că virusul gripei porcine nu afectează persoanele cu guturai (!?!). Cică ar conţine agenţi patogeni care determină ca virusul gripei noi să nu se poate desfăşura şi în cele din urmă să moară. Ei, asta chiar le întrece pe toate! Principiul &#8220;cui pe cui se scoate&#8221; revine în actualitate.</p> ]]></content:encoded> </item> <item><title>De către: Monel</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-235</link> <dc:creator>Monel</dc:creator> <pubDate>Mon, 16 Nov 2009 14:20:10 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-235</guid> <description>Vaccinul antigripal sezonier contine 3 tipuri de virusuri moarte si are rolul de a declansa raspunsul imun al organismului pt. virusurile respective, prevenind astfel instalarea bolii (gripa sezoniera). Virusurile din vaccin (tulpinile lor) se schimba in fiecare an, pe baza supravegherilor la nivel global si a estimarilor virusologilor in legatura cu ce tipuri si tulpini de virusuri vor circula intr-un anumit an. De ce se schimba vaccinul in fiecare an? Pt. ca virusul se schimba (muteaza) in fiecare an.
Capacitatea unui vaccin de a proteja o persoana depinde de varsta si de starea de sanatate a acesteia precum si de similitudinile dintre virusurile din vaccin si virusurile aflate in circulatie. Astfel se ajunge la o eficienta medie de 75% pt. adultii sanatosi, eficienta scazand pana la 15-30% la persoanele de peste 70 de ani. De ce nu e eficient 100% nici macar la adultii sanatosi? Pt. ca virusul nu se muteaza doar de la un an la altul, ci si in timpul unei epidemii.
Toate cele scrise mai sus - cu exceptia compozitiei vaccinului - sunt valabile si pt. vaccinul impotriva gripei porcine. Cat despre eficienta vaccinului impotriva gripei porcine, datorita faptului ca virusurile din vaccin se potrivesc exact cu tulpina de gripa porcina care circula in prezent, acestea ar trebui sa ofere cel putin aceeasi protectie sau chiar sa aiba o eficienta mai mare.</description> <content:encoded><![CDATA[<p>Vaccinul antigripal sezonier contine 3 tipuri de virusuri moarte si are rolul de a declansa raspunsul imun al organismului pt. virusurile respective, prevenind astfel instalarea bolii (gripa sezoniera). Virusurile din vaccin (tulpinile lor) se schimba in fiecare an, pe baza supravegherilor la nivel global si a estimarilor virusologilor in legatura cu ce tipuri si tulpini de virusuri vor circula intr-un anumit an. De ce se schimba vaccinul in fiecare an? Pt. ca virusul se schimba (muteaza) in fiecare an.<br
/> Capacitatea unui vaccin de a proteja o persoana depinde de varsta si de starea de sanatate a acesteia precum si de similitudinile dintre virusurile din vaccin si virusurile aflate in circulatie. Astfel se ajunge la o eficienta medie de 75% pt. adultii sanatosi, eficienta scazand pana la 15-30% la persoanele de peste 70 de ani. De ce nu e eficient 100% nici macar la adultii sanatosi? Pt. ca virusul nu se muteaza doar de la un an la altul, ci si in timpul unei epidemii.<br
/> Toate cele scrise mai sus &#8211; cu exceptia compozitiei vaccinului &#8211; sunt valabile si pt. vaccinul impotriva gripei porcine. Cat despre eficienta vaccinului impotriva gripei porcine, datorita faptului ca virusurile din vaccin se potrivesc exact cu tulpina de gripa porcina care circula in prezent, acestea ar trebui sa ofere cel putin aceeasi protectie sau chiar sa aiba o eficienta mai mare.</p> ]]></content:encoded> </item> <item><title>De către: aNDRIIpOPA</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-234</link> <dc:creator>aNDRIIpOPA</dc:creator> <pubDate>Mon, 16 Nov 2009 06:37:31 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-234</guid> <description>Numa&#039; daca-i usturoi d&#039;alaneaos de la tara.</description> <content:encoded><![CDATA[<p>Numa&#8217; daca-i usturoi d&#8217;alaneaos de la tara.</p> ]]></content:encoded> </item> <item><title>De către: Dan</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-233</link> <dc:creator>Dan</dc:creator> <pubDate>Mon, 16 Nov 2009 04:48:12 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-233</guid> <description>Vania Atudorei zicea ca vaccinul asta antiporcin nu e eficient decat in 40% din cazuri. Io zic sa-i dam inainte cu pita unsa si usturoi.</description> <content:encoded><![CDATA[<p>Vania Atudorei zicea ca vaccinul asta antiporcin nu e eficient decat in 40% din cazuri. Io zic sa-i dam inainte cu pita unsa si usturoi.</p> ]]></content:encoded> </item> <item><title>De către: Dan</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-232</link> <dc:creator>Dan</dc:creator> <pubDate>Mon, 16 Nov 2009 04:45:19 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-232</guid> <description>Vania Atudorei zicea ca vaccinul asta &quot;antiporcin&quot; nu e foarte eficient, dar de aia porcii se inghesuie sa-l bage lumii pe gat.</description> <content:encoded><![CDATA[<p>Vania Atudorei zicea ca vaccinul asta &#8220;antiporcin&#8221; nu e foarte eficient, dar de aia porcii se inghesuie sa-l bage lumii pe gat.</p> ]]></content:encoded> </item> <item><title>De către: aNDRIIpOPA</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-222</link> <dc:creator>aNDRIIpOPA</dc:creator> <pubDate>Sat, 14 Nov 2009 06:54:17 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-222</guid> <description>Corect, dar de aici pana la a isteriza populatia e cale lunga, nu?</description> <content:encoded><![CDATA[<p>Corect, dar de aici pana la a isteriza populatia e cale lunga, nu?</p> ]]></content:encoded> </item> <item><title>De către: Monel</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-220</link> <dc:creator>Monel</dc:creator> <pubDate>Fri, 13 Nov 2009 21:57:07 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-220</guid> <description>Ceea ce este ingrijorator legat de gripa porcina (de tip nou) este faptul ca exista similitudini intre aceasta si gripa spaniola din 1918. Deocamdata noul virus nu este unul virulent si nu are o transmitere usoara de la un om la altul. Virusul nu s-a desavarsit din punct de vedere structural, cu alte cuvinte, inca evolueaza, dar virusul s-ar putea muta intr-o tulpina mult mai virulenta si ar putea astfel cauza o pandemie severa, similara gripei spaniole.Extinderea gripei la nivel mondial (pandemia) ofera virusului posibilitatea de a se muta intr-o alta forma (mai virulenta sau nu). Nu se poate anticipa ceea ce se va intampla sau cat de probabil sau improbabil este sa avem o pandemie grava, dar precautia este rationala si importanta. Trebuie sa fim pregatiti pt. ce-i mai rau, chiar daca exista o sansa redusa ca aceasta sa se intample. Nu se poate exclude repetarea unei pandemii de proportiile gripei spaniole. Ar fi un act de indolenta stupida.Asadar, toate masurile de precautie care se iau acum (informarea populatiei, carantina etc.) au rolul de a stopa raspandirea virusului si prin aceasta, de a reduce riscul aparitiei unei pandemii grave.</description> <content:encoded><![CDATA[<p>Ceea ce este ingrijorator legat de gripa porcina (de tip nou) este faptul ca exista similitudini intre aceasta si gripa spaniola din 1918. Deocamdata noul virus nu este unul virulent si nu are o transmitere usoara de la un om la altul. Virusul nu s-a desavarsit din punct de vedere structural, cu alte cuvinte, inca evolueaza, dar virusul s-ar putea muta intr-o tulpina mult mai virulenta si ar putea astfel cauza o pandemie severa, similara gripei spaniole.</p><p>Extinderea gripei la nivel mondial (pandemia) ofera virusului posibilitatea de a se muta intr-o alta forma (mai virulenta sau nu). Nu se poate anticipa ceea ce se va intampla sau cat de probabil sau improbabil este sa avem o pandemie grava, dar precautia este rationala si importanta. Trebuie sa fim pregatiti pt. ce-i mai rau, chiar daca exista o sansa redusa ca aceasta sa se intample. Nu se poate exclude repetarea unei pandemii de proportiile gripei spaniole. Ar fi un act de indolenta stupida.</p><p>Asadar, toate masurile de precautie care se iau acum (informarea populatiei, carantina etc.) au rolul de a stopa raspandirea virusului si prin aceasta, de a reduce riscul aparitiei unei pandemii grave.</p> ]]></content:encoded> </item> <item><title>De către: aNDRIIpOPA</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-219</link> <dc:creator>aNDRIIpOPA</dc:creator> <pubDate>Fri, 13 Nov 2009 20:42:46 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-219</guid> <description>Pai daca asculti tot interviul o sa vezi ce se spune si despre &quot;pandemia&quot; de gripa aviara de anul trecut. Oricum, cert este ca momentan mai periculaosa este gripa umana (aia clasica), care pana acum a facut in acest an aproximativ 6000 de victime. Cea &quot;porcina&quot; sau de tip nou, in Europa a facut aproximativ 400 de victime. Tratamentul e cam acelasi.</description> <content:encoded><![CDATA[<p>Pai daca asculti tot interviul o sa vezi ce se spune si despre &#8220;pandemia&#8221; de gripa aviara de anul trecut. Oricum, cert este ca momentan mai periculaosa este gripa umana (aia clasica), care pana acum a facut in acest an aproximativ 6000 de victime. Cea &#8220;porcina&#8221; sau de tip nou, in Europa a facut aproximativ 400 de victime. Tratamentul e cam acelasi.</p> ]]></content:encoded> </item> <item><title>De către: ghita</title><link>http://www.andriipopa.ro/2009/11/13/gripa-porcina-intre-mit-adevar-si-profit.html/comment-page-1#comment-218</link> <dc:creator>ghita</dc:creator> <pubDate>Fri, 13 Nov 2009 20:38:50 +0000</pubDate> <guid
isPermaLink="false">http://www.andriipopa.ro/?p=381#comment-218</guid> <description>claar ...cineva face bani frumosi din treaba asta ... ca shi cum s-au facut bani din gripa aviara ...</description> <content:encoded><![CDATA[<p>claar &#8230;cineva face bani frumosi din treaba asta &#8230; ca shi cum s-au facut bani din gripa aviara &#8230;</p> ]]></content:encoded> </item> </channel> </rss>

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